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diff --git a/node_modules/coa/.travis.yml b/node_modules/coa/.travis.yml
new file mode 100644
index 00000000..51b4fe68
--- /dev/null
+++ b/node_modules/coa/.travis.yml
@@ -0,0 +1,9 @@
+language: node_js
+
+node_js:
+  - "0.10"
+  - "0.11"
+
+matrix:
+  allow_failures:
+    - node_js: 0.11
diff --git a/node_modules/coa/GNUmakefile b/node_modules/coa/GNUmakefile
new file mode 100644
index 00000000..51db7b68
--- /dev/null
+++ b/node_modules/coa/GNUmakefile
@@ -0,0 +1,34 @@
+BIN = ./node_modules/.bin
+
+.PHONY: all
+all: lib
+
+lib: $(foreach s,$(wildcard src/*.coffee),$(patsubst src/%.coffee,lib/%.js,$s))
+
+lib-cov: clean-coverage lib
+	$(BIN)/istanbul instrument --output lib-cov --no-compact --variable global.__coverage__ lib
+
+lib/%.js: src/%.coffee
+	$(BIN)/coffee -cb -o $(@D) $<
+
+.PHONY: test
+test: lib
+	$(BIN)/mocha
+
+.PHONY: coverage
+coverage: lib-cov
+	COVER=1 $(BIN)/mocha --reporter mocha-istanbul
+	@echo
+	@echo Open html-report/index.html file in your browser
+
+.PHONY: watch
+watch:
+	$(BIN)/coffee --watch --bare --output lib src/*.coffee
+
+.PHONY: clean
+clean: clean-coverage
+
+.PHONY: clean-coverage
+clean-coverage:
+	-rm -rf lib-cov
+	-rm -rf html-report
diff --git a/node_modules/coa/README.md b/node_modules/coa/README.md
new file mode 100644
index 00000000..fc1b0a9f
--- /dev/null
+++ b/node_modules/coa/README.md
@@ -0,0 +1,322 @@
+# Command-Option-Argument
+[![build status](https://secure.travis-ci.org/veged/coa.png)](http://travis-ci.org/veged/coa)
+
+## What is it?
+
+COA is a parser for command line options that aim to get maximum profit from formalization your program API.
+Once you write definition in terms of commands, options and arguments you automaticaly get:
+
+* Command line help text
+* Program API for use COA-based programs as modules
+* Shell completion
+
+### Other features
+
+* Rich types for options and arguments, such as arrays, boolean flags and required
+* Commands can be async throught using promising (powered by [Q](https://github.com/kriskowal/q))
+* Easy submoduling some existing commands to new top-level one
+* Combined validation and complex parsing of values
+
+### TODO
+
+* Localization
+* Shell-mode
+* Configs
+ * Aliases
+ * Defaults
+
+## Examples
+
+````javascript
+require('coa').Cmd() // main (top level) command declaration
+    .name(process.argv[1]) // set top level command name from program name
+    .title('My awesome command line util') // title for use in text messages
+    .helpful() // make command "helpful", i.e. options -h --help with usage message
+    .opt() // add some option
+        .name('version') // name for use in API
+        .title('Version') // title for use in text messages
+        .short('v') // short key: -v
+        .long('version') // long key: --version
+        .flag() // for options without value
+        .act(function(opts) { // add action for option
+            // return message as result of action
+            return JSON.parse(require('fs').readFileSync(__dirname + '/package.json'))
+                .version;
+        })
+        .end() // end option chain and return to main command
+    .cmd().name('subcommand').apply(require('./subcommand').COA).end() // load subcommand from module
+    .cmd() // inplace subcommand declaration
+        .name('othercommand').title('Awesome other subcommand').helpful()
+        .opt()
+            .name('input').title('input file, required')
+            .short('i').long('input')
+            .val(function(v) { // validator function, also for translate simple values
+                return require('fs').createReadStream(v) })
+            .req() // make option required
+            .end() // end option chain and return to command
+        .end() // end subcommand chain and return to parent command
+    .run(process.argv.slice(2)); // parse and run on process.argv
+````
+
+````javascript
+// subcommand.js
+exports.COA = function() {
+    this
+        .title('Awesome subcommand').helpful()
+        .opt()
+            .name('output').title('output file')
+            .short('o').long('output')
+            .output() // use default preset for "output" option declaration
+            .end()
+};
+````
+
+## API reference
+
+### Cmd
+Command is a top level entity. Commands may have options and arguments.
+
+#### Cmd.api
+Returns object containing all its subcommands as methods to use from other programs.<br>
+**@returns** *{Object}*
+
+#### Cmd.name
+Set a canonical command identifier to be used anywhere in the API.<br>
+**@param** *String* `_name` command name<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.title
+Set a long description for command to be used anywhere in text messages.<br>
+**@param** *String* `_title` command title<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.cmd
+Create new or add existing subcommand for current command.<br>
+**@param** *COA.Cmd* `[cmd]` existing command instance<br>
+**@returns** *COA.Cmd* new or added subcommand instance
+
+#### Cmd.opt
+Create option for current command.<br>
+**@returns** *COA.Opt* `new` option instance
+
+#### Cmd.arg
+Create argument for current command.<br>
+**@returns** *COA.Opt* `new` argument instance
+
+#### Cmd.act
+Add (or set) action for current command.<br>
+**@param** *Function* `act` action function,
+    invoked in the context of command instance
+    and has the parameters:<br>
+        - *Object* `opts` parsed options<br>
+        - *Array* `args` parsed arguments<br>
+        - *Object* `res` actions result accumulator<br>
+    It can return rejected promise by Cmd.reject (in case of error)
+    or any other value treated as result.<br>
+**@param** *{Boolean}* [force=false] flag for set action instead add to existings<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.apply
+Apply function with arguments in context of command instance.<br>
+**@param** *Function* `fn`<br>
+**@param** *Array* `args`<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.comp
+Set custom additional completion for current command.<br>
+**@param** *Function* `fn` completion generation function,
+    invoked in the context of command instance.
+    Accepts parameters:<br>
+        - *Object* `opts` completion options<br>
+    It can return promise or any other value treated as result.<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.helpful
+Make command "helpful", i.e. add -h --help flags for print usage.<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.completable
+Adds shell completion to command, adds "completion" subcommand, that makes all the magic.<br>
+Must be called only on root command.<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.usage
+Build full usage text for current command instance.<br>
+**@returns** *String* `usage` text
+
+#### Cmd.run
+Parse arguments from simple format like NodeJS process.argv
+and run ahead current program, i.e. call process.exit when all actions done.<br>
+**@param** *Array* `argv`<br>
+**@returns** *COA.Cmd* `this` instance (for chainability)
+
+#### Cmd.invoke
+Invoke specified (or current) command using provided options and arguments.<br>
+**@param** *String|Array* `cmds`  subcommand to invoke (optional)<br>
+**@param** *Object* `opts`  command options (optional)<br>
+**@param** *Object* `args`  command arguments (optional)<br>
+**@returns** *Q.Promise*
+
+#### Cmd.reject
+Return reject of actions results promise.<br>
+Use in .act() for return with error.<br>
+**@param** *Object* `reason` reject reason<br>
+    You can customize toString() method and exitCode property
+    of reason object.<br>
+**@returns** *Q.promise* rejected promise
+
+#### Cmd.end
+Finish chain for current subcommand and return parent command instance.<br>
+**@returns** *COA.Cmd* `parent` command
+
+### Opt
+Option is a named entity. Options may have short and long keys for use from command line.<br>
+**@namespace**<br>
+**@class** Presents option
+
+#### Opt.name
+Set a canonical option identifier to be used anywhere in the API.<br>
+**@param** *String* `_name` option name<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.title
+Set a long description for option to be used anywhere in text messages.<br>
+**@param** *String* `_title` option title<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.short
+Set a short key for option to be used with one hyphen from command line.<br>
+**@param** *String* `_short`<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.long
+Set a short key for option to be used with double hyphens from command line.<br>
+**@param** *String* `_long`<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.flag
+Make an option boolean, i.e. option without value.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.arr
+Makes an option accepts multiple values.<br>
+Otherwise, the value will be used by the latter passed.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.req
+Makes an option req.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.only
+Makes an option to act as a command,
+i.e. program will exit just after option action.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.val
+Set a validation (or value) function for argument.<br>
+Value from command line passes through before becoming available from API.<br>
+Using for validation and convertion simple types to any values.<br>
+**@param** *Function* `_val` validating function,
+    invoked in the context of option instance
+    and has one parameter with value from command line<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.def
+Set a default value for option.
+Default value passed through validation function as ordinary value.<br>
+**@param** *Object* `_def`<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.input
+Make option value inputting stream.
+It's add useful validation and shortcut for STDIN.
+**@returns** *{COA.Opt}* `this` instance (for chainability)
+
+#### Opt.output
+Make option value outputing stream.<br>
+It's add useful validation and shortcut for STDOUT.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.act
+Add action for current option command.
+This action is performed if the current option
+is present in parsed options (with any value).<br>
+**@param** *Function* `act` action function,
+    invoked in the context of command instance
+    and has the parameters:<br>
+        - *Object* `opts` parsed options<br>
+        - *Array* `args` parsed arguments<br>
+        - *Object* `res` actions result accumulator<br>
+    It can return rejected promise by Cmd.reject (in case of error)
+    or any other value treated as result.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.comp
+Set custom additional completion for current option.<br>
+**@param** *Function* `fn` completion generation function,
+    invoked in the context of command instance.
+    Accepts parameters:<br>
+        - *Object* `opts` completion options<br>
+    It can return promise or any other value treated as result.<br>
+**@returns** *COA.Opt* `this` instance (for chainability)
+
+#### Opt.end
+Finish chain for current option and return parent command instance.<br>
+**@returns** *COA.Cmd* `parent` command
+
+
+### Arg
+Argument is a unnamed entity.<br>
+From command line arguments passed as list of unnamed values.
+
+#### Arg.name
+Set a canonical argument identifier to be used anywhere in text messages.<br>
+**@param** *String* `_name` argument name<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.title
+Set a long description for argument to be used anywhere in text messages.<br>
+**@param** *String* `_title` argument title<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.arr
+Makes an argument accepts multiple values.<br>
+Otherwise, the value will be used by the latter passed.<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.req
+Makes an argument req.<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.val
+Set a validation (or value) function for argument.<br>
+Value from command line passes through before becoming available from API.<br>
+Using for validation and convertion simple types to any values.<br>
+**@param** *Function* `_val` validating function,
+    invoked in the context of argument instance
+    and has one parameter with value from command line<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.def
+Set a default value for argument.
+Default value passed through validation function as ordinary value.<br>
+**@param** *Object* `_def`<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.output
+Make argument value outputing stream.<br>
+It's add useful validation and shortcut for STDOUT.<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.comp
+Set custom additional completion for current argument.<br>
+**@param** *Function* `fn` completion generation function,
+    invoked in the context of command instance.
+    Accepts parameters:<br>
+        - *Object* `opts` completion options<br>
+    It can return promise or any other value treated as result.<br>
+**@returns** *COA.Arg* `this` instance (for chainability)
+
+#### Arg.end
+Finish chain for current option and return parent command instance.<br>
+**@returns** *COA.Cmd* `parent` command
diff --git a/node_modules/coa/README.ru.md b/node_modules/coa/README.ru.md
new file mode 100644
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@@ -0,0 +1,316 @@
+# Command-Option-Argument
+[![build status](https://secure.travis-ci.org/veged/coa.png)](http://travis-ci.org/veged/coa)
+
+## Что это?
+
+COA — парсер параметров командной строки, позволяющий извлечь максимум пользы от формального API вашей программы.
+Как только вы опишете определение в терминах команд, параметров и аргументов, вы автоматически получите:
+
+* Справку для командной строки
+* API для использования программы как модуля в COA-совместимых программах
+* Автодополнение для командной строки
+
+### Прочие возможности
+
+* Широкий выбор настроек для параметров и аргументов, включая множественные значения, логические значения и обязательность параметров
+* Возможность асинхронного исполнения команд, используя промисы (используется библиотека [Q](https://github.com/kriskowal/q))
+* Простота использования существующих команд как подмодулей для новых команд
+* Комбинированная валидация и анализ сложных значений
+
+## Примеры
+
+````javascript
+require('coa').Cmd() // декларация команды верхнего уровня
+    .name(process.argv[1]) // имя команды верхнего уровня, берем из имени программы
+    .title('Жутко полезная утилита для командной строки') // название для использования в справке и сообщениях
+    .helpful() // добавляем поддержку справки командной строки (-h, --help)
+    .opt() // добавляем параметр
+        .name('version') // имя параметра для использования в API
+        .title('Version') // текст для вывода в сообщениях
+        .short('v') // короткое имя параметра: -v
+        .long('version') // длинное имя параметра: --version
+        .flag() // параметр не требует ввода значения
+        .act(function(opts) {  // действия при вызове аргумента
+            // результатом является вывод текстового сообщения
+            return JSON.parse(require('fs').readFileSync(__dirname + '/package.json'))
+                .version;
+        })
+        .end() // завершаем определение параметра и возвращаемся к определению верхнего уровня
+    .cmd().name('subcommand').apply(require('./subcommand').COA).end() // загрузка подкоманды из модуля
+    .cmd() // добавляем еще одну подкоманду
+        .name('othercommand').title('Еще одна полезная подпрограмма').helpful()
+        .opt()
+            .name('input').title('input file, required')
+            .short('i').long('input')
+            .val(function(v) { // функция-валидатор, также может использоваться для трансформации значений параметров
+                return require('fs').createReadStream(v) })
+            .req() // параметр является обязательным
+            .end() // завершаем определение параметра и возвращаемся к определению команды
+        .end() // завершаем определение подкоманды и возвращаемся к определению команды верхнего уровня
+    .run(process.argv.slice(2)); // разбираем process.argv и запускаем
+````
+
+````javascript
+// subcommand.js
+exports.COA = function() {
+    this
+        .title('Полезная подпрограмма').helpful()
+        .opt()
+            .name('output').title('output file')
+            .short('o').long('output')
+            .output() // использовать стандартную настройку для параметра вывода
+            .end()
+};
+````
+
+## API
+
+### Cmd
+Команда — сущность верхнего уровня. У команды могут быть определены параметры и аргументы.
+
+#### Cmd.api
+Возвращает объект, который можно использовать в других программах. Подкоманды являются методами этого объекта.<br>
+**@returns** *{Object}*
+
+#### Cmd.name
+Определяет канонический идентификатор команды, используемый в вызовах API.<br>
+**@param** *String* `_name` имя команды<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.title
+Определяет название команды, используемый в текстовых сообщениях.<br>
+**@param** *String* `_title` название команды<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.cmd
+Создает новую подкоманду или добавляет ранее определенную подкоманду к текущей команде.<br>
+**@param** *COA.Cmd* `[cmd]` экземпляр ранее определенной подкоманды<br>
+**@returns** *COA.Cmd* экземпляр новой или ранее определенной подкоманды
+
+#### Cmd.opt
+Создает параметр для текущей команды.<br>
+**@returns** *COA.Opt* `new` экземпляр параметра
+
+#### Cmd.arg
+Создает аргумент для текущей команды.<br>
+**@returns** *COA.Opt* `new` экземпляр аргумента
+
+#### Cmd.act
+Добавляет (или создает) действие для текущей команды.<br>
+**@param** *Function* `act` функция,
+    выполняемая в контексте экземпляра текущей команды
+    и принимающая следующие параметры:<br>
+        - *Object* `opts` параметры команды<br>
+        - *Array* `args` аргументы команды<br>
+        - *Object* `res` объект-аккумулятор результатов<br>
+    Функция может вернуть проваленный промис из Cmd.reject (в случае ошибки)
+    или любое другое значение, рассматриваемое как результат.<br>
+**@param** *{Boolean}* [force=false] флаг, назначающий немедленное исполнение вместо добавления к списку существующих действий<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.apply
+Исполняет функцию с переданными аргументами в контексте экземпляра текущей команды.<br>
+**@param** *Function* `fn`<br>
+**@param** *Array* `args`<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.comp
+Назначает кастомную функцию автодополнения для текущей команды.<br>
+**@param** *Function* `fn` функция-генератор автодополнения,
+    исполняемая в контексте текущей команды.
+    Принимает параметры:<br>
+        - *Object* `opts` параметры<br>
+    Может возвращать промис или любое другое значение, рассматриваемое как результат исполнения команды.<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.helpful
+Ставит флаг поддержки справки командной строки, т.е. вызов команды с параметрами -h --help выводит справку по работе с командой.<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.completable
+Добавляет поддержку автодополнения командной строки. Добавляется подкоманда "completion", которая выполняет все необходимые действия.<br>
+Может быть добавлен только для главной команды.<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.usage
+Возвращает текст справки по использованию команды для текущего экземпляра.<br>
+**@returns** *String* `usage` Текст справки по использованию
+
+#### Cmd.run
+Разбирает аргументы из значения, возвращаемого NodeJS process.argv,
+и запускает текущую программу, т.е. вызывает process.exit после завершения
+всех действий.<br>
+**@param** *Array* `argv`<br>
+**@returns** *COA.Cmd* `this` экземпляр команды (для поддержки цепочки методов)
+
+#### Cmd.invoke
+Исполняет переданную (или текущую) команду с указанными параметрами и аргументами.<br>
+**@param** *String|Array* `cmds`  подкоманда для исполнения (необязательно)<br>
+**@param** *Object* `opts`  параметры, передаваемые команде (необязательно)<br>
+**@param** *Object* `args`  аргументы, передаваемые команде (необязательно)<br>
+**@returns** *Q.Promise*
+
+#### Cmd.reject
+Проваливает промисы, возращенные в действиях.<br>
+Используется в .act() для возврата с ошибкой.<br>
+**@param** *Object* `reason` причина провала<br>
+    Вы можете определить метод toString() и свойство toString()
+    объекта причины провала.<br>
+**@returns** *Q.promise* проваленный промис
+
+#### Cmd.end
+Завершает цепочку методов текущей подкоманды и возвращает экземпляр родительской команды.<br>
+**@returns** *COA.Cmd* `parent` родительская команда
+
+### Opt
+Параметр — именованная сущность. У параметра может быть определено короткое или длинное имя для использования из командной строки.<br>
+**@namespace**<br>
+**@class** Переданный параметр
+
+#### Opt.name
+Определяет канонический идентификатор параметра, используемый в вызовах API.<br>
+**@param** *String* `_name` имя параметра<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.title
+Определяет описание для параметра, используемое в текстовых сообщениях.<br>
+**@param** *String* `_title` название параметра<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.short
+Назначает ключ для короткого имени параметра, передаваемого из командной строки с одинарным дефисом (например, `-v`).<br>
+**@param** *String* `_short`<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.long
+Назначает ключ для длинного имени параметра, передаваемого из командной строки с двойным дефисом (например, `--version`).<br>
+**@param** *String* `_long`<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.flag
+Помечает параметр как логический, т.е. параметр не имеющий значения.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.arr
+Помечает параметр как принимающий множественные значения.<br>
+Иначе будет использовано последнее переданное значение параметра.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.req
+Помечает параметр как обязательный.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.only
+Интерпретирует параметр как команду,
+т.е. программа будет завершена сразу после выполнения параметра.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.val
+Назначает функцию валидации (или трансформации значения) для значения параметра.<br>
+Значение, полученное из командной строки, передается в функцию-валидатор прежде чем оно станет доступно из API.<br>
+Используется для валидации и трансформации введенных данных.<br>
+**@param** *Function* `_val` функция валидации,
+    исполняемая в контексте экземпляра параметра
+    и принимающая в качестве единственного параметра значение, полученное
+    из командной строки<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.def
+Назначает значение параметра по умолчанию. Это значение также передается
+в функцию валидации как обычное значение.<br>
+**@param** *Object* `_def`<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.input
+Помечает параметр как принимающий ввод пользователя. <br>
+Позволяет использовать валидацию для STDIN.<br>
+**@returns** *{COA.Opt}* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.output
+Помечает параметр как вывод.<br>
+Позволяет использовать валидацию для STDOUT.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.act
+Добавляет (или создает) действие для текущего параметра команды.
+Это действие будет выполнено, если текущий параметр есть
+в списке полученных параметров (с любым значением).<br>
+**@param** *Function* `act` функция, выполняемая в контексте
+    экземпляра текущей команды и принимающая следующие параметры:<br>
+        - *Object* `opts` параметры команды<br>
+        - *Array* `args` аргументы команды<br>
+        - *Object* `res` объект-аккумулятор результатов<br>
+    Функция может вернуть проваленный промис из Cmd.reject (в случае ошибки)
+    или любое другое значение, рассматриваемое как результат.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.comp
+Назначает кастомную функцию автодополнения для текущей команды.<br>
+**@param** *Function* `fn` функция-генератор автодоплнения, исполняемая в
+    контексте экземпляра команды.
+    Принимает параметры:<br>
+        - *Object* `opts` параметры автодополнения<br>
+    Может возвращать промис или любое другое значение, рассматриваемое как результат исполнения команды.<br>
+**@returns** *COA.Opt* `this` экземпляр параметра (для поддержки цепочки методов)
+
+#### Opt.end
+Завершает цепочку методов текущего параметра и возвращает экземпляр родительской команды.<br>
+**@returns** *COA.Cmd* `parent` родительская команда
+
+
+### Arg
+Аргумент — неименованная сущность.<br>
+Аргументы передаются из командной строки как список неименованных значений.
+
+#### Arg.name
+Определяет канонический идентификатор аргумента, используемый в вызовах API.<br>
+**@param** *String* `_name` имя аргумента<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.title
+Определяет описание для аргумента, используемое в текстовых сообщениях.<br>
+**@param** *String* `_title` описание аргумента<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.arr
+Помечает аргумент как принимающий множественные значения.<br>
+Иначе будет использовано последнее переданное значение аргумента.<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.req
+Помечает аргумент как обязательный.<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.val
+Назначает функцию валидации (или трансформации значения) для аргумента.<br>
+Значение, полученное из командной строки, передается в функцию-валидатор прежде чем оно станет доступно из API.<br>
+Используется для валидации и трансформации введенных данных.<br>
+**@param** *Function* `_val` функция валидации,
+    исполняемая в контексте экземпляра аргумента
+    и принимающая в качестве единственного параметра значение, полученное
+    из командной строки<br>
+**@returns** *COA.Opt* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.def
+Назначает дефолтное значение для аргумента. Дефолтное значение передается
+в функцию валидации как обычное значение.<br>
+**@param** *Object* `_def`<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.output
+Помечает параметр как вывод.<br>
+Позволяет назначить валидацию для STDOUT.<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.comp
+Назначает кастомную функцию автодополнения для текущего аргумента.<br>
+**@param** *Function* `fn` функция-генератор автодоплнения,
+    исполняемая в контексте текущей команды.
+    Принимает параметры:<br>
+        - *Object* `opts` параметры
+Может возвращать промис или любое другое значение, рассматриваемое как результат исполнения команды.<br>
+**@returns** *COA.Arg* `this` экземпляр аргумента (для поддержки цепочки методов)
+
+#### Arg.end
+Завершает цепочку методов текущего аргумента и возвращает экземпляр родительской команды.<br>
+**@returns** *COA.Cmd* `parent` родительская команда
diff --git a/node_modules/coa/coverage/base.css b/node_modules/coa/coverage/base.css
new file mode 100644
index 00000000..417c7adc
--- /dev/null
+++ b/node_modules/coa/coverage/base.css
@@ -0,0 +1,212 @@
+body, html {
+  margin:0; padding: 0;
+  height: 100%;
+}
+body {
+    font-family: Helvetica Neue, Helvetica, Arial;
+    font-size: 14px;
+    color:#333;
+}
+.small { font-size: 12px; }
+*, *:after, *:before {
+  -webkit-box-sizing:border-box;
+     -moz-box-sizing:border-box;
+          box-sizing:border-box;
+  }
+h1 { font-size: 20px; margin: 0;}
+h2 { font-size: 14px; }
+pre {
+    font: 12px/1.4 Consolas, "Liberation Mono", Menlo, Courier, monospace;
+    margin: 0;
+    padding: 0;
+    -moz-tab-size: 2;
+    -o-tab-size:  2;
+    tab-size: 2;
+}
+a { color:#0074D9; text-decoration:none; }
+a:hover { text-decoration:underline; }
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+.space-left2 { padding-left:55px; }
+.space-right2 { padding-right:20px; }
+.center { text-align:center; }
+.clearfix { display:block; }
+.clearfix:after {
+  content:'';
+  display:block;
+  height:0;
+  clear:both;
+  visibility:hidden;
+  }
+.fl { float: left; }
+@media only screen and (max-width:640px) {
+  .col3 { width:100%; max-width:100%; }
+  .hide-mobile { display:none!important; }
+}
+
+.quiet {
+  color: #7f7f7f;
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+}
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+.fraction {
+  font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace;
+  font-size: 10px;
+  color: #555;
+  background: #E8E8E8;
+  padding: 4px 5px;
+  border-radius: 3px;
+  vertical-align: middle;
+}
+
+div.path a:link, div.path a:visited { color: #333; }
+table.coverage {
+  border-collapse: collapse;
+  margin: 10px 0 0 0;
+  padding: 0;
+}
+
+table.coverage td {
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+  padding: 0;
+  vertical-align: top;
+}
+table.coverage td.line-count {
+    text-align: right;
+    padding: 0 5px 0 20px;
+}
+table.coverage td.line-coverage {
+    text-align: right;
+    padding-right: 10px;
+    min-width:20px;
+}
+
+table.coverage td span.cline-any {
+    display: inline-block;
+    padding: 0 5px;
+    width: 100%;
+}
+.missing-if-branch {
+    display: inline-block;
+    margin-right: 5px;
+    border-radius: 3px;
+    position: relative;
+    padding: 0 4px;
+    background: #333;
+    color: yellow;
+}
+
+.skip-if-branch {
+    display: none;
+    margin-right: 10px;
+    position: relative;
+    padding: 0 4px;
+    background: #ccc;
+    color: white;
+}
+.missing-if-branch .typ, .skip-if-branch .typ {
+    color: inherit !important;
+}
+.coverage-summary {
+  border-collapse: collapse;
+  width: 100%;
+}
+.coverage-summary tr { border-bottom: 1px solid #bbb; }
+.keyline-all { border: 1px solid #ddd; }
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+.coverage-summary tbody { border: 1px solid #bbb; }
+.coverage-summary td { border-right: 1px solid #bbb; }
+.coverage-summary td:last-child { border-right: none; }
+.coverage-summary th {
+  text-align: left;
+  font-weight: normal;
+  white-space: nowrap;
+}
+.coverage-summary th.file { border-right: none !important; }
+.coverage-summary th.pct { }
+.coverage-summary th.pic,
+.coverage-summary th.abs,
+.coverage-summary td.pct,
+.coverage-summary td.abs { text-align: right; }
+.coverage-summary td.file { white-space: nowrap;  }
+.coverage-summary td.pic { min-width: 120px !important;  }
+.coverage-summary tfoot td { }
+
+.coverage-summary .sorter {
+    height: 10px;
+    width: 7px;
+    display: inline-block;
+    margin-left: 0.5em;
+    background: url(sort-arrow-sprite.png) no-repeat scroll 0 0 transparent;
+}
+.coverage-summary .sorted .sorter {
+    background-position: 0 -20px;
+}
+.coverage-summary .sorted-desc .sorter {
+    background-position: 0 -10px;
+}
+.status-line {  height: 10px; }
+/* dark red */
+.red.solid, .status-line.low, .low .cover-fill { background:#C21F39 }
+.low .chart { border:1px solid #C21F39 }
+/* medium red */
+.cstat-no, .fstat-no, .cbranch-no, .cbranch-no { background:#F6C6CE }
+/* light red */
+.low, .cline-no { background:#FCE1E5 }
+/* light green */
+.high, .cline-yes { background:rgb(230,245,208) }
+/* medium green */
+.cstat-yes { background:rgb(161,215,106) }
+/* dark green */
+.status-line.high, .high .cover-fill { background:rgb(77,146,33) }
+.high .chart { border:1px solid rgb(77,146,33) }
+
+
+.medium .chart { border:1px solid #666; }
+.medium .cover-fill { background: #666; }
+
+.cbranch-no { background:  yellow !important; color: #111; }
+
+.cstat-skip { background: #ddd; color: #111; }
+.fstat-skip { background: #ddd; color: #111 !important; }
+.cbranch-skip { background: #ddd !important; color: #111; }
+
+span.cline-neutral { background: #eaeaea; }
+.medium { background: #eaeaea; }
+
+.cover-fill, .cover-empty {
+  display:inline-block;
+  height: 12px;
+}
+.chart {
+  line-height: 0;
+}
+.cover-empty {
+    background: white;
+}
+.cover-full {
+    border-right: none !important;
+}
+pre.prettyprint {
+    border: none !important;
+    padding: 0 !important;
+    margin: 0 !important;
+}
+.com { color: #999 !important; }
+.ignore-none { color: #999; font-weight: normal; }
+
+.wrapper {
+  min-height: 100%;
+  height: auto !important;
+  height: 100%;
+  margin: 0 auto -48px;
+}
+.footer, .push {
+  height: 48px;
+}
diff --git a/node_modules/coa/coverage/coa/index.html b/node_modules/coa/coverage/coa/index.html
new file mode 100644
index 00000000..1c0b7106
--- /dev/null
+++ b/node_modules/coa/coverage/coa/index.html
@@ -0,0 +1,93 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../prettify.css" />
+    <link rel="stylesheet" href="../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../index.html">All files</a> coa
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>1/1</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>1/1</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<div class="pad1">
+<table class="coverage-summary">
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="index.js"><a href="index.js.html">index.js</a></td>
+	<td data-value="100" class="pic high"><div class="chart"><div class="cover-fill cover-full" style="width: 100%;"></div><div class="cover-empty" style="width:0%;"></div></div></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">1/1</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">1/1</td>
+	</tr>
+
+</tbody>
+</table>
+</div><div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/index.js.html b/node_modules/coa/coverage/coa/index.js.html
new file mode 100644
index 00000000..a5da1dd3
--- /dev/null
+++ b/node_modules/coa/coverage/coa/index.js.html
@@ -0,0 +1,68 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/index.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../prettify.css" />
+    <link rel="stylesheet" href="../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../index.html">All files</a> / <a href="index.html">coa</a> index.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>1/1</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>1/1</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
+2</td><td class="line-coverage quiet"><span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">module.exports = require('./lib');
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/arg.js.html b/node_modules/coa/coverage/coa/lib/arg.js.html
new file mode 100644
index 00000000..85b03aec
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/arg.js.html
@@ -0,0 +1,239 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/arg.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> arg.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>16/16</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">87.5% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>7/8</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>6/6</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>16/16</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
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+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const
+    CoaParam = require('./coaparam'),
+    Color = require('./color');
+&nbsp;
+/**
+ * Argument
+ *
+ * Unnamed entity. From command line arguments passed as list of unnamed values.
+ *
+ * @class Arg
+ * @extends CoaParam
+ */
+module.exports = class Arg extends CoaParam {
+    /**
+     * @constructs
+     * @param {COA.Cmd} cmd - parent command
+     */
+    constructor(cmd) {
+        super(cmd);
+&nbsp;
+        this._cmd._args.push(this);
+    }
+&nbsp;
+    _saveVal(args, val) {
+        this._val &amp;&amp; (<span class="branch-1 cbranch-no" title="branch not covered" >val = this._val(val))</span>;
+&nbsp;
+        const name = this._name;
+        this._arr
+            ? (args[name] || (args[name] = [])).push(val)
+            : (args[name] = val);
+&nbsp;
+        return val;
+    }
+&nbsp;
+    _parse(arg, args) {
+        return this._saveVal(args, arg);
+    }
+&nbsp;
+    _checkParsed(opts, args) {
+        return !args.hasOwnProperty(this._name);
+    }
+&nbsp;
+    _usage() {
+        const res = [];
+&nbsp;
+        res.push(Color('lpurple', this._name.toUpperCase()), ' : ', this._title);
+&nbsp;
+        this._req &amp;&amp; res.push(' ', Color('lred', '(required)'));
+&nbsp;
+        return res.join('');
+    }
+&nbsp;
+    _requiredText() {
+        return `Missing required argument:\n  ${this._usage()}`;
+    }
+};
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/cmd.js.html b/node_modules/coa/coverage/coa/lib/cmd.js.html
new file mode 100644
index 00000000..03a50aca
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/cmd.js.html
@@ -0,0 +1,1556 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/cmd.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> cmd.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">81.22% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>147/181</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">71.64% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>96/134</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">68.75% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>33/48</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">82.53% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>137/166</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
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+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const
+    UTIL = require('util'),
+    PATH = require('path'),
+    EOL = require('os').EOL,
+&nbsp;
+    Q = require('q'),
+&nbsp;
+    CoaObject = require('./coaobject'),
+    Color = require('./color'),
+    Opt = require('./opt'),
+    Arg = require('./arg'),
+    completion = require('./completion');
+&nbsp;
+/**
+ * Command
+ *
+ * Top level entity. Commands may have options and arguments.
+ *
+ * @namespace
+ * @class Cmd
+ * @extends CoaObject
+ */
+class Cmd extends CoaObject {
+    /**
+     * @constructs
+     * @param {COA.Cmd} [cmd] parent command
+     */
+    constructor(cmd) {
+        super(cmd);
+&nbsp;
+        this._parent(cmd);
+        this._cmds = [];
+        this._cmdsByName = {};
+        this._opts = [];
+        this._optsByKey = {};
+        this._args = [];
+        this._api = null;
+        this._ext = false;
+    }
+&nbsp;
+    static create(cmd) {
+        return new Cmd(cmd);
+    }
+&nbsp;
+    /**
+     * Returns object containing all its subcommands as methods
+     * to use from other programs.
+     *
+     * @returns {Object}
+     */
+    get api() {
+        // Need _this here because of passed arguments into _api
+        const _this = this;
+        this._api || (this._api = function () {
+            return _this.invoke.apply(_this, arguments);
+        });
+&nbsp;
+        const cmds = this._cmdsByName;
+        Object.keys(cmds).forEach((c) =&gt; {
+            this._api[c] = cmds[c].api;
+        });
+        return this._api;
+    }
+&nbsp;
+    _parent(cmd) {
+        this._cmd = cmd || this;
+&nbsp;
+        this.isRootCmd
+            || cmd._cmds.push(this)
+            &amp;&amp; this._name
+            &amp;&amp; (this._cmd._cmdsByName[this._name] = this);
+&nbsp;
+        return this;
+    }
+&nbsp;
+    get isRootCmd() {
+        return this._cmd === this;
+    }
+&nbsp;
+    /**
+     * Set a canonical command identifier to be used anywhere in the API.
+     *
+     * @param {String} name - command name
+     * @returns {COA.Cmd} - this instance (for chainability)
+     */
+    name(name) {
+        super.name(name);
+&nbsp;
+        this.isRootCmd
+            || (this._cmd._cmdsByName[name] = this);
+&nbsp;
+        return this;
+    }
+&nbsp;
+    /**
+     * Create new or add existing subcommand for current command.
+     *
+     * @param {COA.Cmd} [cmd] existing command instance
+     * @returns {COA.Cmd} new subcommand instance
+     */
+    cmd(cmd) {
+        return cmd?
+            cmd._parent(this)
+            : new Cmd(this);
+    }
+&nbsp;
+    /**
+     * Create option for current command.
+     *
+     * @returns {COA.Opt} new option instance
+     */
+    opt() {
+        return new Opt(this);
+    }
+&nbsp;
+    /**
+     * Create argument for current command.
+     *
+     * @returns {COA.Opt} new argument instance
+     */
+    arg() {
+        return new Arg(this);
+    }
+&nbsp;
+    /**
+     * Add (or set) action for current command.
+     *
+     * @param {Function} act - action function,
+     *         invoked in the context of command instance
+     *         and has the parameters:
+     *                 - {Object} opts - parsed options
+     *                 - {String[]} args - parsed arguments
+     *                 - {Object} res - actions result accumulator
+     *         It can return rejected promise by Cmd.reject (in case of error)
+     *         or any other value treated as result.
+     * @param {Boolean} [force=false] flag for set action instead add to existings
+     * @returns {COA.Cmd} - this instance (for chainability)
+     */
+    act(act, force) {
+        <span class="missing-if-branch" title="if path not taken" >I</span>if(!act) <span class="cstat-no" title="statement not covered" >return this;</span>
+&nbsp;
+        (!this._act || <span class="branch-1 cbranch-no" title="branch not covered" >force)</span> &amp;&amp; (this._act = []);
+        this._act.push(act);
+&nbsp;
+        return this;
+    }
+&nbsp;
+    /**
+     * Make command "helpful", i.e. add -h --help flags for print usage.
+     *
+     * @returns {COA.Cmd} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    he</span>lpful() {
+<span class="cstat-no" title="statement not covered" >        return this.opt()</span>
+            .name('help')
+            .title('Help')
+            .short('h')
+            .long('help')
+            .flag()
+            .only()
+            .act(<span class="fstat-no" title="function not covered" >fu</span>nction() {
+<span class="cstat-no" title="statement not covered" >                return this.usage();</span>
+            })
+            .end();
+    }
+&nbsp;
+    /**
+     * Adds shell completion to command, adds "completion" subcommand,
+     * that makes all the magic.
+     * Must be called only on root command.
+     *
+     * @returns {COA.Cmd} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    co</span>mpletable() {
+<span class="cstat-no" title="statement not covered" >        return this.cmd()</span>
+            .name('completion')
+            .apply(completion)
+            .end();
+    }
+&nbsp;
+    /**
+     * Allow command to be extendable by external node.js modules.
+     *
+     * @param {String} [pattern]  Pattern of node.js module to find subcommands at.
+     * @returns {COA.Cmd} - this instance (for chainability)
+     */
+    extendable(pattern) {
+        this._ext = pattern || true;
+        return this;
+    }
+&nbsp;
+<span class="fstat-no" title="function not covered" >    _e</span>xit(msg, code) {
+<span class="cstat-no" title="statement not covered" >        return process.once('exit', <span class="fstat-no" title="function not covered" >fu</span>nction() {</span>
+<span class="cstat-no" title="statement not covered" >            msg &amp;&amp; console.error(msg);</span>
+<span class="cstat-no" title="statement not covered" >            return process.exit(code || 0);</span>
+        });
+    }
+&nbsp;
+    /**
+     * Build full usage text for current command instance.
+     *
+     * @returns {String} usage text
+     */
+<span class="fstat-no" title="function not covered" >    us</span>age() {
+        const res = <span class="cstat-no" title="statement not covered" >[];</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        this._title &amp;&amp; res.push(this._fullTitle());</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        res.push('', 'Usage:');</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        this._cmds.length</span>
+            &amp;&amp; res.push([
+                '', '', Color('lred', this._fullName()), Color('lblue', 'COMMAND'),
+                Color('lgreen', '[OPTIONS]'), Color('lpurple', '[ARGS]')
+            ].join(' '));
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        (this._opts.length + this._args.length)</span>
+            &amp;&amp; res.push([
+                '', '', Color('lred', this._fullName()),
+                Color('lgreen', '[OPTIONS]'), Color('lpurple', '[ARGS]')
+            ].join(' '));
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        res.push(</span>
+            this._usages(this._cmds, 'Commands'),
+            this._usages(this._opts, 'Options'),
+            this._usages(this._args, 'Arguments')
+        );
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        return res.join(EOL);</span>
+    }
+&nbsp;
+<span class="fstat-no" title="function not covered" >    _u</span>sage() {
+<span class="cstat-no" title="statement not covered" >        return Color('lblue', this._name) + ' : ' + this._title;</span>
+    }
+&nbsp;
+<span class="fstat-no" title="function not covered" >    _u</span>sages(os, title) {
+<span class="cstat-no" title="statement not covered" >        if(!os.length) <span class="cstat-no" title="statement not covered" >return;</span></span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        return ['', title + ':']</span>
+            .concat(os.map(<span class="fstat-no" title="function not covered" >o </span>=&gt; <span class="cstat-no" title="statement not covered" >`  ${o._usage()}`)</span>)
+            .join(EOL);
+    }
+&nbsp;
+<span class="fstat-no" title="function not covered" >    _f</span>ullTitle() {
+<span class="cstat-no" title="statement not covered" >        return `${this.isRootCmd? '' : this._cmd._fullTitle() + EOL}${this._title}`;</span>
+    }
+&nbsp;
+<span class="fstat-no" title="function not covered" >    _f</span>ullName() {
+<span class="cstat-no" title="statement not covered" >        return `${this.isRootCmd? '' : this._cmd._fullName() + ' '}${PATH.basename(this._name)}`;</span>
+    }
+&nbsp;
+    _ejectOpt(opts, opt) {
+        const pos = opts.indexOf(opt);
+        if(pos === -1)
+            return;
+&nbsp;
+        return opts[pos]._arr?
+            opts[pos]
+            : opts.splice(pos, 1)[0];
+    }
+&nbsp;
+    _checkRequired(opts, args) {
+        if(this._opts.some(opt =&gt; opt._only &amp;&amp; opt._name in opts)) return;
+&nbsp;
+        const all = this._opts.concat(this._args);
+        let i;
+        while(i = all.shift())
+            if(i._req &amp;&amp; i._checkParsed(opts, args))
+                return this.reject(i._requiredText());
+    }
+&nbsp;
+    _parseCmd(argv, unparsed) {
+        unparsed || (unparsed = []);
+&nbsp;
+        let i,
+            optSeen = false;
+        while(i = argv.shift()) {
+            i.indexOf('-') || (optSeen = true);
+&nbsp;
+            if(optSeen || !/^\w[\w-_]*$/.test(i)) {
+                unparsed.push(i);
+                continue;
+            }
+&nbsp;
+            let pkg, cmd = this._cmdsByName[i];
+            if(!cmd &amp;&amp; this._ext) {
+                if(typeof this._ext === 'string') {
+                    pkg = ~this._ext.indexOf('%s')?
+                        UTIL.format(this._ext, i)
+                        : this._ext + i;
+&nbsp;
+                } else <span class="missing-if-branch" title="else path not taken" >E</span>if(this._ext === true) {
+                    pkg = i;
+                    let c = this;
+                    while(true) { // eslint-disable-line
+                        pkg = c._name + '-' + pkg;
+                        if(c.isRootCmd) break;
+                        c = c._cmd;
+                    }
+                }
+&nbsp;
+                const cmdDesc = tryCatch(() =&gt; require(pkg));
+                <span class="missing-if-branch" title="else path not taken" >E</span>if(cmdDesc) {
+                    if(typeof cmdDesc === 'function') {
+                        this.cmd().name(i).apply(cmdDesc).end();
+&nbsp;
+                    } else <span class="missing-if-branch" title="else path not taken" >E</span>if(typeof cmdDesc === 'object') {
+                        this.cmd(cmdDesc);
+                        cmdDesc.name(i);
+&nbsp;
+                    } else <span class="cstat-no" title="statement not covered" >throw new Error('Error: Unsupported command declaration type, '</span>
+                        + 'should be a function or COA.Cmd() object');
+&nbsp;
+                    cmd = this._cmdsByName[i];
+                }
+            }
+&nbsp;
+            if(cmd) return cmd._parseCmd(argv, unparsed);
+&nbsp;
+            unparsed.push(i);
+        }
+&nbsp;
+        return { cmd : this, argv : unparsed };
+    }
+&nbsp;
+    _parseOptsAndArgs(argv) {
+        const opts = {},
+            args = {},
+            nonParsedOpts = this._opts.concat(),
+            nonParsedArgs = this._args.concat();
+&nbsp;
+        let res, i;
+        while(i = argv.shift()) {
+            if(i !== '--' &amp;&amp; i[0] === '-') {
+                const m = i.match(/^(--\w[\w-_]*)=(.*)$/);
+                if(m) {
+                    i = m[1];
+                    this._optsByKey[i]._flag || argv.unshift(m[2]);
+                }
+&nbsp;
+                const opt = this._ejectOpt(nonParsedOpts, this._optsByKey[i]);
+                if(!opt) return this.reject(`Unknown option: ${i}`);
+&nbsp;
+                if(Q.isRejected(res = opt._parse(argv, opts))) return res;
+&nbsp;
+                continue;
+            }
+&nbsp;
+            i === '--' &amp;&amp; (i = argv.splice(0));
+            Array.isArray(i) || (i = [i]);
+&nbsp;
+            let a;
+            while(a = i.shift()) {
+                let arg = nonParsedArgs.shift();
+                if(!arg) return this.reject(`Unknown argument: ${a}`);
+&nbsp;
+                arg._arr &amp;&amp; nonParsedArgs.unshift(arg);
+                <span class="missing-if-branch" title="if path not taken" >I</span>if(Q.isRejected(res = arg._parse(a, args))) <span class="cstat-no" title="statement not covered" >return res;</span>
+            }
+        }
+&nbsp;
+        return {
+            opts : this._setDefaults(opts, nonParsedOpts),
+            args : this._setDefaults(args, nonParsedArgs)
+        };
+    }
+&nbsp;
+    _setDefaults(params, desc) {
+        for(const item of desc)
+            item._def
+                &amp;&amp; !(item._name in params)
+                &amp;&amp; item._saveVal(params, item._def);
+&nbsp;
+        return params;
+    }
+&nbsp;
+    _processParams(params, desc) {
+        const notExists = [];
+&nbsp;
+        for(const item of desc) {
+            const n = item._name;
+&nbsp;
+            <span class="missing-if-branch" title="if path not taken" >I</span>if(!(n in params)) {
+<span class="cstat-no" title="statement not covered" >                notExists.push(item);</span>
+<span class="cstat-no" title="statement not covered" >                continue;</span>
+            }
+&nbsp;
+            const vals = [].concat(params[n]);
+            delete params[n];
+&nbsp;
+            let res;
+            for(const v of vals)
+                <span class="missing-if-branch" title="if path not taken" >I</span>if(Q.isRejected(res = item._saveVal(params, v)))
+<span class="cstat-no" title="statement not covered" >                    return res;</span>
+        }
+&nbsp;
+        return this._setDefaults(params, notExists);
+    }
+&nbsp;
+    _parseArr(argv) {
+        return Q.when(this._parseCmd(argv), (p) =&gt;
+            Q.when(p.cmd._parseOptsAndArgs(p.argv), (r) =&gt; ({
+                cmd : p.cmd,
+                opts : r.opts,
+                args : r.args
+            })));
+    }
+&nbsp;
+    _do(inputPromise) {
+        return Q.when(inputPromise, (input) =&gt; {
+            return [this._checkRequired]
+                .concat(input.cmd._act || <span class="branch-1 cbranch-no" title="branch not covered" >[])</span>
+                .reduce((res, act) =&gt;
+                    Q.when(res, (prev) =&gt; act.call(input.cmd, input.opts, input.args, prev)),
+                    void 0);
+        });
+    }
+&nbsp;
+    /**
+     * Parse arguments from simple format like NodeJS process.argv
+     * and run ahead current program, i.e. call process.exit when all actions done.
+     *
+     * @param {String[]} argv - arguments
+     * @returns {COA.Cmd} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    ru</span>n(argv) {
+<span class="cstat-no" title="statement not covered" >        argv || (argv = process.argv.slice(2));</span>
+&nbsp;
+        const cb = <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >(c</span>ode) =&gt; <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >(r</span>es) =&gt; <span class="cstat-no" title="statement not covered" >res?</span></span></span>
+            this._exit(res.stack || res.toString(), res.exitCode || code)
+            : this._exit();
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        Q.when(this.do(argv), cb(0), cb(1)).done();</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        return this;</span>
+    }
+&nbsp;
+    /**
+     * Invoke specified (or current) command using provided
+     * options and arguments.
+     *
+     * @param {String|String[]} [cmds] - subcommand to invoke (optional)
+     * @param {Object} [opts] - command options (optional)
+     * @param {Object} [args] - command arguments (optional)
+     * @returns {Q.Promise}
+     */
+    invoke(cmds, opts, args) {
+        cmds || (<span class="branch-1 cbranch-no" title="branch not covered" >cmds = [])</span>;
+        opts || (opts = {});
+        args || (args = {});
+        typeof cmds === 'string' &amp;&amp; (cmds = cmds.split(' '));
+&nbsp;
+        if(arguments.length &lt; 3 &amp;&amp; !Array.isArray(cmds)) {
+            args = opts;
+            opts = cmds;
+            cmds = [];
+        }
+&nbsp;
+        return Q.when(this._parseCmd(cmds), (p) =&gt; {
+            if(p.argv.length)
+                return this.reject(`Unknown command: ${cmds.join(' ')}`);
+&nbsp;
+            return Q.all([this._processParams(opts, this._opts), this._processParams(args, this._args)])
+                .spread((_opts, _args) =&gt;
+                    this._do({
+                        cmd : p.cmd,
+                        opts : _opts,
+                        args : _args
+                    })
+                    .fail(<span class="fstat-no" title="function not covered" >(r</span>es) =&gt; <span class="cstat-no" title="statement not covered" >(res &amp;&amp; res.exitCode === 0)?</span>
+                        res.toString()
+                        : this.reject(res)));
+        });
+    }
+}
+&nbsp;
+/**
+ * Convenient function to run command from tests.
+ *
+ * @param {String[]} argv - arguments
+ * @returns {Q.Promise}
+ */
+Cmd.prototype.do = function(argv) {
+    return this._do(this._parseArr(argv || []));
+};
+&nbsp;
+function tryCatch(fn, cb) {
+    try {
+        return fn();
+    } catch(e) {
+<span class="cstat-no" title="statement not covered" >        return cb(e);</span>
+    }
+}
+&nbsp;
+module.exports = Cmd;
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/coaobject.js.html b/node_modules/coa/coverage/coa/lib/coaobject.js.html
new file mode 100644
index 00000000..32dfc7f5
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/coaobject.js.html
@@ -0,0 +1,365 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/coaobject.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> coaobject.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">75% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>12/16</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">50% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>1/2</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">71.43% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>5/7</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">75% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>12/16</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line medium'></div>
+<pre><table class="coverage">
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+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const Q = require('q');
+&nbsp;
+/**
+ * COA Object
+ *
+ * Base class for all COA-related objects
+ *
+ * --------|-----|-----|-----
+ *         | Cmd | Opt | Arg
+ * --------|-----|-----|-----
+ *  name   | ✓   | ✓   | ✓
+ *  title  | ✓   | ✓   | ✓
+ *  comp   | ✓   | ✓   | ✓
+ *  reject | ✓   | ✓   | ✓
+ *  end    | ✓   | ✓   | ✓
+ *  apply  | ✓   | ✓   | ✓
+ *
+ * @class CoaObject
+ */
+module.exports = class CoaObject {
+    constructor(cmd) {
+        this._cmd = cmd;
+        this._name = null;
+        this._title = null;
+        this._comp = null;
+    }
+&nbsp;
+    /**
+     * Set a canonical identifier to be used anywhere in the API.
+     *
+     * @param {String} name - command, option or argument name
+     * @returns {COA.CoaObject} - this instance (for chainability)
+     */
+    name(name) {
+        this._name = name;
+        return this;
+    }
+&nbsp;
+    /**
+     * Set a long description to be used anywhere in text messages.
+     * @param {String} title - human readable entity title
+     * @returns {COA.CoaObject} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    ti</span>tle(title) {
+<span class="cstat-no" title="statement not covered" >        this._title = title;</span>
+<span class="cstat-no" title="statement not covered" >        return this;</span>
+    }
+&nbsp;
+    /**
+     * Set custom additional completion for current object.
+     *
+     * @param {Function} comp - completion generation function,
+     *         invoked in the context of object instance.
+     *         Accepts parameters:
+     *                 - {Object} opts - completion options
+     *         It can return promise or any other value threated as a result.
+     * @returns {COA.CoaObject} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    co</span>mp(comp) {
+<span class="cstat-no" title="statement not covered" >        this._comp = comp;</span>
+<span class="cstat-no" title="statement not covered" >        return this;</span>
+    }
+&nbsp;
+    /**
+     * Apply function with arguments in a context of object instance.
+     *
+     * @param {Function} fn - body
+     * @param {Array.&lt;*&gt;} args... - arguments
+     * @returns {COA.CoaObject} - this instance (for chainability)
+     */
+    apply(fn) {
+        arguments.length &gt; 1?
+<span class="branch-0 cbranch-no" title="branch not covered" >            fn.apply(this, [].slice.call(arguments, 1))</span>
+            : fn.call(this);
+&nbsp;
+        return this;
+    }
+&nbsp;
+    /**
+     * Return reject of actions results promise with error code.
+     * Use in .act() for return with error.
+     * @param {Object} reason - reject reason
+     *         You can customize toString() method and exitCode property
+     *         of reason object.
+     * @returns {Q.promise} rejected promise
+     */
+    reject(reason) {
+        return Q.reject(reason);
+    }
+&nbsp;
+    /**
+     * Finish chain for current subcommand and return parent command instance.
+     * @returns {COA.Cmd} parent command
+     */
+    end() {
+        return this._cmd;
+    }
+};
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/coaparam.js.html b/node_modules/coa/coverage/coa/lib/coaparam.js.html
new file mode 100644
index 00000000..b8bc9bd8
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/coaparam.js.html
@@ -0,0 +1,440 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/coaparam.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> coaparam.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">51.61% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>16/31</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">0% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>0/8</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">55.56% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>5/9</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">51.61% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>16/31</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line medium'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const fs = require('fs');
+&nbsp;
+const CoaObject = require('./coaobject');
+&nbsp;
+/**
+ * COA Parameter
+ *
+ * Base class for options and arguments
+ *
+ * --------|-----|-----|-----
+ *         | Cmd | Opt | Arg
+ * --------|-----|-----|-----
+ *  arr    |     | ✓   | ✓
+ *  req    |     | ✓   | ✓
+ *  val    |     | ✓   | ✓
+ *  def    |     | ✓   | ✓
+ *  input  |     | ✓   | ✓
+ *  output |     | ✓   | ✓
+ *
+ * @class CoaParam
+ * @extends CoaObject
+ */
+module.exports = class CoaParam extends CoaObject {
+    constructor(cmd) {
+        super(cmd);
+&nbsp;
+        this._arr = false;
+        this._req = false;
+        this._val = undefined;
+        this._def = undefined;
+    }
+&nbsp;
+    /**
+     * Makes a param accepts multiple values.
+     * Otherwise, the value will be used by the latter passed.
+     *
+     * @returns {COA.CoaParam} - this instance (for chainability)
+     */
+    arr() {
+        this._arr = true;
+        return this;
+    }
+&nbsp;
+    /**
+     * Makes a param required.
+     *
+     * @returns {COA.CoaParam} - this instance (for chainability)
+     */
+    req() {
+        this._req = true;
+        return this;
+    }
+&nbsp;
+    /**
+     * Set a validation (or value) function for param.
+     * Value from command line passes through before becoming available from API.
+     * Using for validation and convertion simple types to any values.
+     *
+     * @param {Function} val - validating function,
+     *         invoked in the context of option instance
+     *         and has one parameter with value from command line.
+     * @returns {COA.CoaParam} - this instance (for chainability)
+     */
+    val(val) {
+        this._val = val;
+        return this;
+    }
+&nbsp;
+    /**
+     * Set a default value for param.
+     * Default value passed through validation function as ordinary value.
+     *
+     * @param {*} def - default value of function generator
+     * @returns {COA.CoaParam} - this instance (for chainability)
+     */
+    def(def) {
+        this._def = def;
+        return this;
+    }
+&nbsp;
+    /**
+     * Make option value inputting stream.
+     * It's add useful validation and shortcut for STDIN.
+     *
+     * @returns {COA.CoaParam} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    in</span>put() {
+<span class="cstat-no" title="statement not covered" >        process.stdin.pause();</span>
+<span class="cstat-no" title="statement not covered" >        return this</span>
+            .def(process.stdin)
+            .val(<span class="fstat-no" title="function not covered" >fu</span>nction(v) {
+<span class="cstat-no" title="statement not covered" >                if(typeof v !== 'string')</span>
+<span class="cstat-no" title="statement not covered" >                    return v;</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >                if(v === '-')</span>
+<span class="cstat-no" title="statement not covered" >                    return process.stdin;</span>
+&nbsp;
+                const s = <span class="cstat-no" title="statement not covered" >fs.createReadStream(v, { encoding : 'utf8' });</span>
+<span class="cstat-no" title="statement not covered" >                s.pause();</span>
+<span class="cstat-no" title="statement not covered" >                return s;</span>
+            });
+    }
+&nbsp;
+    /**
+     * Make option value outputing stream.
+     * It's add useful validation and shortcut for STDOUT.
+     *
+     * @returns {COA.CoaParam} - this instance (for chainability)
+     */
+<span class="fstat-no" title="function not covered" >    ou</span>tput() {
+<span class="cstat-no" title="statement not covered" >        return this</span>
+            .def(process.stdout)
+            .val(<span class="fstat-no" title="function not covered" >fu</span>nction(v) {
+<span class="cstat-no" title="statement not covered" >                if(typeof v !== 'string')</span>
+<span class="cstat-no" title="statement not covered" >                    return v;</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >                if(v === '-')</span>
+<span class="cstat-no" title="statement not covered" >                    return process.stdout;</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >                return fs.createWriteStream(v, { encoding : 'utf8' });</span>
+            });
+    }
+};
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/color.js.html b/node_modules/coa/coverage/coa/lib/color.js.html
new file mode 100644
index 00000000..14531caf
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/color.js.html
@@ -0,0 +1,131 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/color.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> color.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>3/3</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>1/1</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>2/2</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
+2
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+23</td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">4x</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const colors = {
+    black : '30',
+    dgray : '1;30',
+    red : '31',
+    lred : '1;31',
+    green : '32',
+    lgreen : '1;32',
+    brown : '33',
+    yellow : '1;33',
+    blue : '34',
+    lblue : '1;34',
+    purple : '35',
+    lpurple : '1;35',
+    cyan : '36',
+    lcyan : '1;36',
+    lgray : '37',
+    white : '1;37'
+};
+&nbsp;
+module.exports = (c, str) =&gt; `\x1B[${colors[c]}m${str}\x1B[m`;
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/completion.js.html b/node_modules/coa/coverage/coa/lib/completion.js.html
new file mode 100644
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@@ -0,0 +1,593 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/completion.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> completion.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">11.27% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>8/71</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">0% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>0/32</span>
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+      <div class='fl pad1y space-right2'>
+        <span class="strong">0% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>0/14</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">12.5% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>8/64</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line low'></div>
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const constants = require('constants');
+const fs = require('fs');
+const path = require('path');
+&nbsp;
+const Q = require('q');
+&nbsp;
+const shell = require('./shell');
+const escape = shell.escape;
+const unescape = shell.unescape;
+&nbsp;
+/**
+ * Most of the code adopted from the npm package shell completion code.
+ * See https://github.com/isaacs/npm/blob/master/lib/completion.js
+ *
+ * @returns {COA.CoaObject}
+ */
+module.exports = function <span class="fstat-no" title="function not covered" >completion(</span>) {
+<span class="cstat-no" title="statement not covered" >    return this</span>
+        .title('Shell completion')
+        .helpful()
+        .arg()
+            .name('raw')
+            .title('Completion words')
+            .arr()
+            .end()
+        .act(<span class="fstat-no" title="function not covered" >(o</span>pts, args) =&gt; {
+<span class="cstat-no" title="statement not covered" >            if(process.platform === 'win32') {</span>
+                const e = <span class="cstat-no" title="statement not covered" >new Error('shell completion not supported on windows');</span>
+<span class="cstat-no" title="statement not covered" >                e.code = 'ENOTSUP';</span>
+<span class="cstat-no" title="statement not covered" >                e.errno = constants.ENOTSUP;</span>
+<span class="cstat-no" title="statement not covered" >                return this.reject(e);</span>
+            }
+&nbsp;
+            // if the COMP_* isn't in the env, then just dump the script
+<span class="cstat-no" title="statement not covered" >            if((process.env.COMP_CWORD == null)</span>
+                || (process.env.COMP_LINE == null)
+                || (process.env.COMP_POINT == null)) {
+<span class="cstat-no" title="statement not covered" >                return dumpScript(this._cmd._name);</span>
+            }
+&nbsp;
+<span class="cstat-no" title="statement not covered" >            console.error('COMP_LINE:  %s', process.env.COMP_LINE);</span>
+<span class="cstat-no" title="statement not covered" >            console.error('COMP_CWORD: %s', process.env.COMP_CWORD);</span>
+<span class="cstat-no" title="statement not covered" >            console.error('COMP_POINT: %s', process.env.COMP_POINT);</span>
+<span class="cstat-no" title="statement not covered" >            console.error('args: %j', args.raw);</span>
+&nbsp;
+            // completion opts
+<span class="cstat-no" title="statement not covered" >            opts = getOpts(args.raw);</span>
+&nbsp;
+            // cmd
+            const parsed = <span class="cstat-no" title="statement not covered" >this._cmd._parseCmd(opts.partialWords);</span>
+<span class="cstat-no" title="statement not covered" >            return Q.when(complete(parsed.cmd, parsed.opts), <span class="fstat-no" title="function not covered" >(c</span>ompls) =&gt; {</span>
+<span class="cstat-no" title="statement not covered" >                console.error('filtered: %j', compls);</span>
+<span class="cstat-no" title="statement not covered" >                return console.log(compls.map(escape).join('\n'));</span>
+            });
+        });
+};
+&nbsp;
+function <span class="fstat-no" title="function not covered" >dumpScript(</span>name) {
+    const defer = <span class="cstat-no" title="statement not covered" >Q.defer();</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >    fs.readFile(path.resolve(__dirname, 'completion.sh'), 'utf8', <span class="fstat-no" title="function not covered" >fu</span>nction(err, d) {</span>
+<span class="cstat-no" title="statement not covered" >        if(err) <span class="cstat-no" title="statement not covered" >return defer.reject(err);</span></span>
+<span class="cstat-no" title="statement not covered" >        d = d.replace(/{{cmd}}/g, path.basename(name)).replace(/^\#\!.*?\n/, '');</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >        process.stdout.on('error', onError);</span>
+<span class="cstat-no" title="statement not covered" >        process.stdout.write(d, <span class="fstat-no" title="function not covered" >()</span> =&gt; <span class="cstat-no" title="statement not covered" >defer.resolve())</span>;</span>
+    });
+&nbsp;
+<span class="cstat-no" title="statement not covered" >    return defer.promise;</span>
+&nbsp;
+    function <span class="fstat-no" title="function not covered" >onError(</span>err) {
+        // Darwin is a real dick sometimes.
+        //
+        // This is necessary because the "source" or "." program in
+        // bash on OS X closes its file argument before reading
+        // from it, meaning that you get exactly 1 write, which will
+        // work most of the time, and will always raise an EPIPE.
+        //
+        // Really, one should not be tossing away EPIPE errors, or any
+        // errors, so casually. But, without this, `. &lt;(cmd completion)`
+        // can never ever work on OS X.
+<span class="cstat-no" title="statement not covered" >        if(err.errno !== constants.EPIPE) <span class="cstat-no" title="statement not covered" >return defer.reject(err);</span></span>
+<span class="cstat-no" title="statement not covered" >        process.stdout.removeListener('error', onError);</span>
+<span class="cstat-no" title="statement not covered" >        return defer.resolve();</span>
+    }
+}
+&nbsp;
+function <span class="fstat-no" title="function not covered" >getOpts(</span>argv) {
+    // get the partial line and partial word, if the point isn't at the end
+    // ie, tabbing at: cmd foo b|ar
+    const line = <span class="cstat-no" title="statement not covered" >process.env.COMP_LINE;</span>
+    const w = <span class="cstat-no" title="statement not covered" >+process.env.COMP_CWORD;</span>
+    const point = <span class="cstat-no" title="statement not covered" >+process.env.COMP_POINT;</span>
+    const words = <span class="cstat-no" title="statement not covered" >argv.map(unescape);</span>
+    const word = <span class="cstat-no" title="statement not covered" >words[w];</span>
+    const partialLine = <span class="cstat-no" title="statement not covered" >line.substr(0, point);</span>
+    const partialWords = <span class="cstat-no" title="statement not covered" >words.slice(0, w);</span>
+&nbsp;
+    // figure out where in that last word the point is
+    let partialWord = <span class="cstat-no" title="statement not covered" >argv[w] || '';</span>
+    let i = <span class="cstat-no" title="statement not covered" >partialWord.length;</span>
+<span class="cstat-no" title="statement not covered" >    while(partialWord.substr(0, i) !== partialLine.substr(-1 * i) &amp;&amp; i &gt; 0) <span class="cstat-no" title="statement not covered" >i--;</span></span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >    partialWord = unescape(partialWord.substr(0, i));</span>
+<span class="cstat-no" title="statement not covered" >    partialWord &amp;&amp; partialWords.push(partialWord);</span>
+&nbsp;
+<span class="cstat-no" title="statement not covered" >    return {</span>
+        line,
+        w,
+        point,
+        words,
+        word,
+        partialLine,
+        partialWords,
+        partialWord
+    };
+}
+&nbsp;
+function <span class="fstat-no" title="function not covered" >complete(</span>cmd, opts) {
+    let optWord, optPrefix,
+        compls = <span class="cstat-no" title="statement not covered" >[];</span>
+&nbsp;
+    // Complete on cmds
+<span class="cstat-no" title="statement not covered" >    if(opts.partialWord.indexOf('-'))</span>
+<span class="cstat-no" title="statement not covered" >        compls = Object.keys(cmd._cmdsByName);</span>
+        // Complete on required opts without '-' in last partial word
+        // (if required not already specified)
+        //
+        // Commented out because of uselessness:
+        // -b, --block suggest results in '-' on cmd line;
+        // next completion suggest all options, because of '-'
+        //.concat Object.keys(cmd._optsByKey).filter (v) -&gt; cmd._optsByKey[v]._req
+    else {
+        // complete on opt values: --opt=| case
+        const m = <span class="cstat-no" title="statement not covered" >opts.partialWord.match(/^(--\w[\w-_]*)=(.*)$/);</span>
+<span class="cstat-no" title="statement not covered" >        if(m) {</span>
+<span class="cstat-no" title="statement not covered" >            optWord = m[1];</span>
+<span class="cstat-no" title="statement not covered" >            optPrefix = optWord + '=';</span>
+        } else
+            // complete on opts
+            // don't complete on opts in case of --opt=val completion
+            // TODO: don't complete on opts in case of unknown arg after commands
+            // TODO: complete only on opts with arr() or not already used
+            // TODO: complete only on full opts?
+<span class="cstat-no" title="statement not covered" >            compls = Object.keys(cmd._optsByKey);</span>
+    }
+&nbsp;
+    // complete on opt values: next arg case
+<span class="cstat-no" title="statement not covered" >    opts.partialWords[opts.w - 1].indexOf('-') || (optWord = opts.partialWords[opts.w - 1]);</span>
+&nbsp;
+    // complete on opt values: completion
+    let opt;
+<span class="cstat-no" title="statement not covered" >    optWord</span>
+        &amp;&amp; (opt = cmd._optsByKey[optWord])
+        &amp;&amp; !opt._flag
+        &amp;&amp; opt._comp
+        &amp;&amp; (compls = Q.join(compls,
+            Q.when(opt._comp(opts),
+<span class="fstat-no" title="function not covered" >                (c</span>, o) =&gt; <span class="cstat-no" title="statement not covered" >c.concat(o.map(<span class="fstat-no" title="function not covered" >v </span>=&gt; <span class="cstat-no" title="statement not covered" >(optPrefix || '') + v)</span>))</span>));
+&nbsp;
+    // TODO: complete on args values (context aware, custom completion?)
+&nbsp;
+    // custom completion on cmds
+<span class="cstat-no" title="statement not covered" >    cmd._comp &amp;&amp; (compls = Q.join(compls, Q.when(cmd._comp(opts)), <span class="fstat-no" title="function not covered" >(c</span>, o) =&gt; <span class="cstat-no" title="statement not covered" >c.concat(o))</span>);</span>
+&nbsp;
+    // TODO: context aware custom completion on cmds, opts and args
+    // (can depend on already entered values, especially options)
+&nbsp;
+<span class="cstat-no" title="statement not covered" >    return Q.when(compls, <span class="fstat-no" title="function not covered" >co</span>mplitions =&gt; {</span>
+<span class="cstat-no" title="statement not covered" >        console.error('partialWord: %s', opts.partialWord);</span>
+<span class="cstat-no" title="statement not covered" >        console.error('compls: %j', complitions);</span>
+<span class="cstat-no" title="statement not covered" >        return compls.filter(<span class="fstat-no" title="function not covered" >(c</span>) =&gt; <span class="cstat-no" title="statement not covered" >c.indexOf(opts.partialWord) === 0)</span>;</span>
+    });
+}
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/index.html b/node_modules/coa/coverage/coa/lib/index.html
new file mode 100644
index 00000000..a9301282
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/index.html
@@ -0,0 +1,197 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> coa/lib
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">68.17% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>257/377</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">59.05% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>124/210</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">65.35% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>66/101</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">69.8% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>245/351</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line medium'></div>
+<div class="pad1">
+<table class="coverage-summary">
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="arg.js"><a href="arg.js.html">arg.js</a></td>
+	<td data-value="100" class="pic high"><div class="chart"><div class="cover-fill cover-full" style="width: 100%;"></div><div class="cover-empty" style="width:0%;"></div></div></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="16" class="abs high">16/16</td>
+	<td data-value="87.5" class="pct high">87.5%</td>
+	<td data-value="8" class="abs high">7/8</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="6" class="abs high">6/6</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="16" class="abs high">16/16</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="cmd.js"><a href="cmd.js.html">cmd.js</a></td>
+	<td data-value="81.22" class="pic high"><div class="chart"><div class="cover-fill" style="width: 81%;"></div><div class="cover-empty" style="width:19%;"></div></div></td>
+	<td data-value="81.22" class="pct high">81.22%</td>
+	<td data-value="181" class="abs high">147/181</td>
+	<td data-value="71.64" class="pct medium">71.64%</td>
+	<td data-value="134" class="abs medium">96/134</td>
+	<td data-value="68.75" class="pct medium">68.75%</td>
+	<td data-value="48" class="abs medium">33/48</td>
+	<td data-value="82.53" class="pct high">82.53%</td>
+	<td data-value="166" class="abs high">137/166</td>
+	</tr>
+
+<tr>
+	<td class="file medium" data-value="coaobject.js"><a href="coaobject.js.html">coaobject.js</a></td>
+	<td data-value="75" class="pic medium"><div class="chart"><div class="cover-fill" style="width: 75%;"></div><div class="cover-empty" style="width:25%;"></div></div></td>
+	<td data-value="75" class="pct medium">75%</td>
+	<td data-value="16" class="abs medium">12/16</td>
+	<td data-value="50" class="pct medium">50%</td>
+	<td data-value="2" class="abs medium">1/2</td>
+	<td data-value="71.43" class="pct medium">71.43%</td>
+	<td data-value="7" class="abs medium">5/7</td>
+	<td data-value="75" class="pct medium">75%</td>
+	<td data-value="16" class="abs medium">12/16</td>
+	</tr>
+
+<tr>
+	<td class="file medium" data-value="coaparam.js"><a href="coaparam.js.html">coaparam.js</a></td>
+	<td data-value="51.61" class="pic medium"><div class="chart"><div class="cover-fill" style="width: 51%;"></div><div class="cover-empty" style="width:49%;"></div></div></td>
+	<td data-value="51.61" class="pct medium">51.61%</td>
+	<td data-value="31" class="abs medium">16/31</td>
+	<td data-value="0" class="pct low">0%</td>
+	<td data-value="8" class="abs low">0/8</td>
+	<td data-value="55.56" class="pct medium">55.56%</td>
+	<td data-value="9" class="abs medium">5/9</td>
+	<td data-value="51.61" class="pct medium">51.61%</td>
+	<td data-value="31" class="abs medium">16/31</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="color.js"><a href="color.js.html">color.js</a></td>
+	<td data-value="100" class="pic high"><div class="chart"><div class="cover-fill cover-full" style="width: 100%;"></div><div class="cover-empty" style="width:0%;"></div></div></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="3" class="abs high">3/3</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">1/1</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="2" class="abs high">2/2</td>
+	</tr>
+
+<tr>
+	<td class="file low" data-value="completion.js"><a href="completion.js.html">completion.js</a></td>
+	<td data-value="11.27" class="pic low"><div class="chart"><div class="cover-fill" style="width: 11%;"></div><div class="cover-empty" style="width:89%;"></div></div></td>
+	<td data-value="11.27" class="pct low">11.27%</td>
+	<td data-value="71" class="abs low">8/71</td>
+	<td data-value="0" class="pct low">0%</td>
+	<td data-value="32" class="abs low">0/32</td>
+	<td data-value="0" class="pct low">0%</td>
+	<td data-value="14" class="abs low">0/14</td>
+	<td data-value="12.5" class="pct low">12.5%</td>
+	<td data-value="64" class="abs low">8/64</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="index.js"><a href="index.js.html">index.js</a></td>
+	<td data-value="100" class="pic high"><div class="chart"><div class="cover-fill cover-full" style="width: 100%;"></div><div class="cover-empty" style="width:0%;"></div></div></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="5" class="abs high">5/5</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="5" class="abs high">5/5</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="opt.js"><a href="opt.js.html">opt.js</a></td>
+	<td data-value="91.84" class="pic high"><div class="chart"><div class="cover-fill" style="width: 91%;"></div><div class="cover-empty" style="width:9%;"></div></div></td>
+	<td data-value="91.84" class="pct high">91.84%</td>
+	<td data-value="49" class="abs high">45/49</td>
+	<td data-value="72.73" class="pct medium">72.73%</td>
+	<td data-value="22" class="abs medium">16/22</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="14" class="abs high">14/14</td>
+	<td data-value="95.65" class="pct high">95.65%</td>
+	<td data-value="46" class="abs high">44/46</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="shell.js"><a href="shell.js.html">shell.js</a></td>
+	<td data-value="100" class="pic high"><div class="chart"><div class="cover-fill cover-full" style="width: 100%;"></div><div class="cover-empty" style="width:0%;"></div></div></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="5" class="abs high">5/5</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="4" class="abs high">4/4</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="2" class="abs high">2/2</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="5" class="abs high">5/5</td>
+	</tr>
+
+</tbody>
+</table>
+</div><div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/index.js.html b/node_modules/coa/coverage/coa/lib/index.js.html
new file mode 100644
index 00000000..cfc7c0f0
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/index.js.html
@@ -0,0 +1,107 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/index.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> index.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>5/5</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>0/0</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>5/5</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15</td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">const
+    Cmd = require('./cmd'),
+    Opt = require('./opt'),
+    Arg = require('./arg'),
+    shell = require('./shell');
+&nbsp;
+module.exports = {
+    Cmd : Cmd.create,
+    Opt : Opt.create,
+    Arg : Arg.create,
+    classes : { Cmd, Opt, Arg },
+    shell,
+    require
+};
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/opt.js.html b/node_modules/coa/coverage/coa/lib/opt.js.html
new file mode 100644
index 00000000..74e05c28
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/opt.js.html
@@ -0,0 +1,524 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/opt.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> opt.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">91.84% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>45/49</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">72.73% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>16/22</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>14/14</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">95.65% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>44/46</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46
+47
+48
+49
+50
+51
+52
+53
+54
+55
+56
+57
+58
+59
+60
+61
+62
+63
+64
+65
+66
+67
+68
+69
+70
+71
+72
+73
+74
+75
+76
+77
+78
+79
+80
+81
+82
+83
+84
+85
+86
+87
+88
+89
+90
+91
+92
+93
+94
+95
+96
+97
+98
+99
+100
+101
+102
+103
+104
+105
+106
+107
+108
+109
+110
+111
+112
+113
+114
+115
+116
+117
+118
+119
+120
+121
+122
+123
+124
+125
+126
+127
+128
+129
+130
+131
+132
+133
+134
+135
+136
+137
+138
+139
+140
+141
+142
+143
+144
+145
+146
+147
+148
+149
+150
+151
+152
+153
+154</td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">16x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">20x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">20x</span>
+<span class="cline-any cline-yes">20x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">20x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">18x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+const
+    Q = require('q'),
+&nbsp;
+    CoaParam = require('./coaparam'),
+    Color = require('./color');
+&nbsp;
+/**
+ * Option
+ *
+ * Named entity. Options may have short and long keys for use from command line.
+ *
+ * @namespace
+ * @class Opt
+ * @extends CoaParam
+ */
+module.exports = class Opt extends CoaParam {
+    /**
+     * @constructs
+     * @param {COA.Cmd} cmd - parent command
+     */
+    constructor(cmd) {
+        super(cmd);
+&nbsp;
+        this._short = null;
+        this._long = null;
+        this._flag = false;
+        this._only = false;
+        this._cmd._opts.push(this);
+    }
+&nbsp;
+    /**
+     * Set a short key for option to be used with one hyphen from command line.
+     *
+     * @param {String} short - short name
+     * @returns {COA.Opt} - this instance (for chainability)
+     */
+    short(short) {
+        this._short = short;
+        this._cmd._optsByKey[`-${short}`] = this;
+        return this;
+    }
+&nbsp;
+    /**
+     * Set a short key for option to be used with double hyphens from command line.
+     *
+     * @param {String} long - long name
+     * @returns {COA.Opt} - this instance (for chainability)
+     */
+    long(long) {
+        this._long = long;
+        this._cmd._optsByKey[`--${long}`] = this;
+        return this;
+    }
+&nbsp;
+    /**
+     * Make an option boolean, i.e. option without value.
+     *
+     * @returns {COA.Opt} - this instance (for chainability)
+     */
+    flag() {
+        this._flag = true;
+        return this;
+    }
+&nbsp;
+    /**
+     * Makes an option to act as a command,
+     * i.e. program will exit just after option action.
+     *
+     * @returns {COA.Opt} - this instance (for chainability)
+     */
+    only() {
+        this._only = true;
+        return this;
+    }
+&nbsp;
+    /**
+     * Add action for current option command.
+     * This action is performed if the current option
+     * is present in parsed options (with any value).
+     *
+     * @param {Function} act - action function,
+     *         invoked in the context of command instance
+     *         and has the parameters:
+     *                 - {Object} opts - parsed options
+     *                 - {Array} args - parsed arguments
+     *                 - {Object} res - actions result accumulator
+     *         It can return rejected promise by Cmd.reject (in case of error)
+     *         or any other value treated as result.
+     * @returns {COA.Opt} - this instance (for chainability)
+     */
+    act(act) {
+        this._cmd.act((opts) =&gt; {
+            <span class="missing-if-branch" title="if path not taken" >I</span>if(!opts.hasOwnProperty(this._name)) <span class="cstat-no" title="statement not covered" >return;</span>
+&nbsp;
+            const res = act.apply(this._cmd, arguments);
+            <span class="missing-if-branch" title="if path not taken" >I</span>if(!this._only) <span class="cstat-no" title="statement not covered" >return res;</span>
+&nbsp;
+            return Q.when(res, (out) =&gt; this._cmd.reject({
+                toString : () =&gt; out.toString(),
+                exitCode : 0
+            }));
+        });
+&nbsp;
+        return this;
+    }
+&nbsp;
+    _saveVal(opts, val) {
+        this._val &amp;&amp; (val = this._val(val));
+&nbsp;
+        const name = this._name;
+        this._arr
+            ? (opts[name] || (opts[name] = [])).push(val)
+            : (opts[name] = val);
+&nbsp;
+        return val;
+    }
+&nbsp;
+    _parse(argv, opts) {
+        return this._saveVal(opts, this._flag ? true : argv.shift());
+    }
+&nbsp;
+    _checkParsed(opts) {
+        return !opts.hasOwnProperty(this._name);
+    }
+&nbsp;
+    _usage() {
+        const res = [],
+            nameStr = this._name.toUpperCase();
+&nbsp;
+        <span class="missing-if-branch" title="else path not taken" >E</span>if(this._short) {
+            res.push('-', Color('lgreen', this._short));
+            this._flag || res.push(' ' + nameStr);
+            res.push(', ');
+        }
+&nbsp;
+        <span class="missing-if-branch" title="if path not taken" >I</span>if(this._long) {
+<span class="cstat-no" title="statement not covered" >            res.push('--', Color('green', this._long));</span>
+<span class="cstat-no" title="statement not covered" >            this._flag || res.push('=' + nameStr);</span>
+        }
+&nbsp;
+        res.push(' : ', this._title);
+&nbsp;
+        this._req &amp;&amp; res.push(' ', Color('lred', '(required)'));
+&nbsp;
+        return res.join('');
+    }
+&nbsp;
+    _requiredText() {
+        return `Missing required option:\n  ${this._usage()}`;
+    }
+};
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/coa/lib/shell.js.html b/node_modules/coa/coverage/coa/lib/shell.js.html
new file mode 100644
index 00000000..b98935af
--- /dev/null
+++ b/node_modules/coa/coverage/coa/lib/shell.js.html
@@ -0,0 +1,107 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for coa/lib/shell.js</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> shell.js
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>5/5</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>4/4</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>2/2</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">100% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>5/5</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line high'></div>
+<pre><table class="coverage">
+<tr><td class="line-count quiet">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15</td><td class="line-coverage quiet"><span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">6x</span>
+<span class="cline-any cline-yes">6x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">module.exports = { escape, unescape };
+&nbsp;
+function unescape(w) {
+    w = w.charAt(0) === '"'
+        ? w.replace(/^"|([^\\])"$/g, '$1')
+        : w.replace(/\\ /g, ' ');
+&nbsp;
+    return w.replace(/\\("|'|\$|`|\\)/g, '$1');
+}
+&nbsp;
+function escape(w) {
+    w = w.replace(/(["'$`\\])/g,'\\$1');
+    return w.match(/\s+/) ? `"${w}"` : w;
+}
+&nbsp;</pre></td></tr>
+</table></pre>
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="../../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../../sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/index.html b/node_modules/coa/coverage/index.html
new file mode 100644
index 00000000..ee3d492f
--- /dev/null
+++ b/node_modules/coa/coverage/index.html
@@ -0,0 +1,106 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for All files</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="prettify.css" />
+    <link rel="stylesheet" href="base.css" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class='wrapper'>
+  <div class='pad1'>
+    <h1>
+      All files
+    </h1>
+    <div class='clearfix'>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">68.25% </span>
+        <span class="quiet">Statements</span>
+        <span class='fraction'>258/378</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">59.05% </span>
+        <span class="quiet">Branches</span>
+        <span class='fraction'>124/210</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">65.35% </span>
+        <span class="quiet">Functions</span>
+        <span class='fraction'>66/101</span>
+      </div>
+      <div class='fl pad1y space-right2'>
+        <span class="strong">69.89% </span>
+        <span class="quiet">Lines</span>
+        <span class='fraction'>246/352</span>
+      </div>
+    </div>
+  </div>
+  <div class='status-line medium'></div>
+<div class="pad1">
+<table class="coverage-summary">
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="coa"><a href="coa/index.html">coa</a></td>
+	<td data-value="100" class="pic high"><div class="chart"><div class="cover-fill cover-full" style="width: 100%;"></div><div class="cover-empty" style="width:0%;"></div></div></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">1/1</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="0" class="abs high">0/0</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="1" class="abs high">1/1</td>
+	</tr>
+
+<tr>
+	<td class="file medium" data-value="coa/lib"><a href="coa/lib/index.html">coa/lib</a></td>
+	<td data-value="68.17" class="pic medium"><div class="chart"><div class="cover-fill" style="width: 68%;"></div><div class="cover-empty" style="width:32%;"></div></div></td>
+	<td data-value="68.17" class="pct medium">68.17%</td>
+	<td data-value="377" class="abs medium">257/377</td>
+	<td data-value="59.05" class="pct medium">59.05%</td>
+	<td data-value="210" class="abs medium">124/210</td>
+	<td data-value="65.35" class="pct medium">65.35%</td>
+	<td data-value="101" class="abs medium">66/101</td>
+	<td data-value="69.8" class="pct medium">69.8%</td>
+	<td data-value="351" class="abs medium">245/351</td>
+	</tr>
+
+</tbody>
+</table>
+</div><div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Feb 17 2017 22:25:28 GMT+0300 (MSK)
+</div>
+</div>
+<script src="prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="sorter.js"></script>
+</body>
+</html>
diff --git a/node_modules/coa/coverage/prettify.css b/node_modules/coa/coverage/prettify.css
new file mode 100644
index 00000000..b317a7cd
--- /dev/null
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diff --git a/node_modules/coa/coverage/sort-arrow-sprite.png b/node_modules/coa/coverage/sort-arrow-sprite.png
new file mode 100644
index 00000000..03f704a6
--- /dev/null
+++ b/node_modules/coa/coverage/sort-arrow-sprite.png
diff --git a/node_modules/coa/coverage/sorter.js b/node_modules/coa/coverage/sorter.js
new file mode 100644
index 00000000..6c5034e4
--- /dev/null
+++ b/node_modules/coa/coverage/sorter.js
@@ -0,0 +1,158 @@
+var addSorting = (function () {
+    "use strict";
+    var cols,
+        currentSort = {
+            index: 0,
+            desc: false
+        };
+
+    // returns the summary table element
+    function getTable() { return document.querySelector('.coverage-summary'); }
+    // returns the thead element of the summary table
+    function getTableHeader() { return getTable().querySelector('thead tr'); }
+    // returns the tbody element of the summary table
+    function getTableBody() { return getTable().querySelector('tbody'); }
+    // returns the th element for nth column
+    function getNthColumn(n) { return getTableHeader().querySelectorAll('th')[n]; }
+
+    // loads all columns
+    function loadColumns() {
+        var colNodes = getTableHeader().querySelectorAll('th'),
+            colNode,
+            cols = [],
+            col,
+            i;
+
+        for (i = 0; i < colNodes.length; i += 1) {
+            colNode = colNodes[i];
+            col = {
+                key: colNode.getAttribute('data-col'),
+                sortable: !colNode.getAttribute('data-nosort'),
+                type: colNode.getAttribute('data-type') || 'string'
+            };
+            cols.push(col);
+            if (col.sortable) {
+                col.defaultDescSort = col.type === 'number';
+                colNode.innerHTML = colNode.innerHTML + '<span class="sorter"></span>';
+            }
+        }
+        return cols;
+    }
+    // attaches a data attribute to every tr element with an object
+    // of data values keyed by column name
+    function loadRowData(tableRow) {
+        var tableCols = tableRow.querySelectorAll('td'),
+            colNode,
+            col,
+            data = {},
+            i,
+            val;
+        for (i = 0; i < tableCols.length; i += 1) {
+            colNode = tableCols[i];
+            col = cols[i];
+            val = colNode.getAttribute('data-value');
+            if (col.type === 'number') {
+                val = Number(val);
+            }
+            data[col.key] = val;
+        }
+        return data;
+    }
+    // loads all row data
+    function loadData() {
+        var rows = getTableBody().querySelectorAll('tr'),
+            i;
+
+        for (i = 0; i < rows.length; i += 1) {
+            rows[i].data = loadRowData(rows[i]);
+        }
+    }
+    // sorts the table using the data for the ith column
+    function sortByIndex(index, desc) {
+        var key = cols[index].key,
+            sorter = function (a, b) {
+                a = a.data[key];
+                b = b.data[key];
+                return a < b ? -1 : a > b ? 1 : 0;
+            },
+            finalSorter = sorter,
+            tableBody = document.querySelector('.coverage-summary tbody'),
+            rowNodes = tableBody.querySelectorAll('tr'),
+            rows = [],
+            i;
+
+        if (desc) {
+            finalSorter = function (a, b) {
+                return -1 * sorter(a, b);
+            };
+        }
+
+        for (i = 0; i < rowNodes.length; i += 1) {
+            rows.push(rowNodes[i]);
+            tableBody.removeChild(rowNodes[i]);
+        }
+
+        rows.sort(finalSorter);
+
+        for (i = 0; i < rows.length; i += 1) {
+            tableBody.appendChild(rows[i]);
+        }
+    }
+    // removes sort indicators for current column being sorted
+    function removeSortIndicators() {
+        var col = getNthColumn(currentSort.index),
+            cls = col.className;
+
+        cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, '');
+        col.className = cls;
+    }
+    // adds sort indicators for current column being sorted
+    function addSortIndicators() {
+        getNthColumn(currentSort.index).className += currentSort.desc ? ' sorted-desc' : ' sorted';
+    }
+    // adds event listeners for all sorter widgets
+    function enableUI() {
+        var i,
+            el,
+            ithSorter = function ithSorter(i) {
+                var col = cols[i];
+
+                return function () {
+                    var desc = col.defaultDescSort;
+
+                    if (currentSort.index === i) {
+                        desc = !currentSort.desc;
+                    }
+                    sortByIndex(i, desc);
+                    removeSortIndicators();
+                    currentSort.index = i;
+                    currentSort.desc = desc;
+                    addSortIndicators();
+                };
+            };
+        for (i =0 ; i < cols.length; i += 1) {
+            if (cols[i].sortable) {
+                // add the click event handler on the th so users
+                // dont have to click on those tiny arrows
+                el = getNthColumn(i).querySelector('.sorter').parentElement;
+                if (el.addEventListener) {
+                    el.addEventListener('click', ithSorter(i));
+                } else {
+                    el.attachEvent('onclick', ithSorter(i));
+                }
+            }
+        }
+    }
+    // adds sorting functionality to the UI
+    return function () {
+        if (!getTable()) {
+            return;
+        }
+        cols = loadColumns();
+        loadData(cols);
+        addSortIndicators();
+        enableUI();
+    };
+})();
+
+window.addEventListener('load', addSorting);
diff --git a/node_modules/coa/index.js b/node_modules/coa/index.js
new file mode 100644
index 00000000..76c1c3a3
--- /dev/null
+++ b/node_modules/coa/index.js
@@ -0,0 +1 @@
+module.exports = require(process.env.COVER? './lib-cov' : './lib');
diff --git a/node_modules/coa/lib/arg.js b/node_modules/coa/lib/arg.js
new file mode 100644
index 00000000..4444a8a5
--- /dev/null
+++ b/node_modules/coa/lib/arg.js
@@ -0,0 +1,175 @@
+// Generated by CoffeeScript 1.6.3
+var Arg, Cmd, Color, Opt;
+
+Color = require('./color').Color;
+
+Cmd = require('./cmd').Cmd;
+
+Opt = require('./opt').Opt;
+
+/**
+Argument
+
+Unnamed entity. From command line arguments passed as list of unnamed values.
+@namespace
+@class Presents argument
+*/
+
+
+exports.Arg = Arg = (function() {
+  /**
+  @constructs
+  @param {COA.Cmd} cmd parent command
+  */
+
+  function Arg(_cmd) {
+    this._cmd = _cmd;
+    this._cmd._args.push(this);
+  }
+
+  /**
+  Set a canonical argument identifier to be used anywhere in text messages.
+  @param {String} _name argument name
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.name = Opt.prototype.name;
+
+  /**
+  Set a long description for argument to be used anywhere in text messages.
+  @param {String} _title argument title
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.title = Cmd.prototype.title;
+
+  /**
+  Makes an argument accepts multiple values.
+  Otherwise, the value will be used by the latter passed.
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.arr = Opt.prototype.arr;
+
+  /**
+  Makes an argument required.
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.req = Opt.prototype.req;
+
+  /**
+  Set a validation (or value) function for argument.
+  Value from command line passes through before becoming available from API.
+  Using for validation and convertion simple types to any values.
+  @param {Function} _val validating function,
+      invoked in the context of argument instance
+      and has one parameter with value from command line
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.val = Opt.prototype.val;
+
+  /**
+  Set a default value for argument.
+  Default value passed through validation function as ordinary value.
+  @param {Object} _def
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.def = Opt.prototype.def;
+
+  /**
+  Set custom additional completion for current argument.
+  @param {Function} completion generation function,
+      invoked in the context of argument instance.
+      Accepts parameters:
+          - {Object} opts completion options
+      It can return promise or any other value treated as result.
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.comp = Cmd.prototype.comp;
+
+  /**
+  Make argument value inputting stream.
+  It's add useful validation and shortcut for STDIN.
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.input = Opt.prototype.input;
+
+  /**
+  Make argument value outputing stream.
+  It's add useful validation and shortcut for STDOUT.
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.output = Opt.prototype.output;
+
+  Arg.prototype._parse = function(arg, args) {
+    return this._saveVal(args, arg);
+  };
+
+  Arg.prototype._saveVal = Opt.prototype._saveVal;
+
+  Arg.prototype._checkParsed = function(opts, args) {
+    return !args.hasOwnProperty(this._name);
+  };
+
+  Arg.prototype._usage = function() {
+    var res;
+    res = [];
+    res.push(Color('lpurple', this._name.toUpperCase()), ' : ', this._title);
+    if (this._req) {
+      res.push(' ', Color('lred', '(required)'));
+    }
+    return res.join('');
+  };
+
+  Arg.prototype._requiredText = function() {
+    return 'Missing required argument:\n  ' + this._usage();
+  };
+
+  /**
+  Return rejected promise with error code.
+  Use in .val() for return with error.
+  @param {Object} reject reason
+      You can customize toString() method and exitCode property
+      of reason object.
+  @returns {Q.promise} rejected promise
+  */
+
+
+  Arg.prototype.reject = Cmd.prototype.reject;
+
+  /**
+  Finish chain for current option and return parent command instance.
+  @returns {COA.Cmd} parent command
+  */
+
+
+  Arg.prototype.end = Cmd.prototype.end;
+
+  /**
+  Apply function with arguments in context of arg instance.
+  @param {Function} fn
+  @param {Array} args
+  @returns {COA.Arg} this instance (for chainability)
+  */
+
+
+  Arg.prototype.apply = Cmd.prototype.apply;
+
+  return Arg;
+
+})();
diff --git a/node_modules/coa/lib/cmd.js b/node_modules/coa/lib/cmd.js
new file mode 100644
index 00000000..b53c2541
--- /dev/null
+++ b/node_modules/coa/lib/cmd.js
@@ -0,0 +1,605 @@
+// Generated by CoffeeScript 1.6.3
+var Cmd, Color, PATH, Q, UTIL,
+  __slice = [].slice;
+
+UTIL = require('util');
+
+PATH = require('path');
+
+Color = require('./color').Color;
+
+Q = require('q');
+
+/**
+Command
+
+Top level entity. Commands may have options and arguments.
+@namespace
+@class Presents command
+*/
+
+
+exports.Cmd = Cmd = (function() {
+  /**
+  @constructs
+  @param {COA.Cmd} [cmd] parent command
+  */
+
+  function Cmd(cmd) {
+    if (!(this instanceof Cmd)) {
+      return new Cmd(cmd);
+    }
+    this._parent(cmd);
+    this._cmds = [];
+    this._cmdsByName = {};
+    this._opts = [];
+    this._optsByKey = {};
+    this._args = [];
+    this._ext = false;
+  }
+
+  Cmd.get = function(propertyName, func) {
+    return Object.defineProperty(this.prototype, propertyName, {
+      configurable: true,
+      enumerable: true,
+      get: func
+    });
+  };
+
+  /**
+  Returns object containing all its subcommands as methods
+  to use from other programs.
+  @returns {Object}
+  */
+
+
+  Cmd.get('api', function() {
+    var c, _fn,
+      _this = this;
+    if (!this._api) {
+      this._api = function() {
+        return _this.invoke.apply(_this, arguments);
+      };
+    }
+    _fn = function(c) {
+      return _this._api[c] = _this._cmdsByName[c].api;
+    };
+    for (c in this._cmdsByName) {
+      _fn(c);
+    }
+    return this._api;
+  });
+
+  Cmd.prototype._parent = function(cmd) {
+    this._cmd = cmd || this;
+    if (cmd) {
+      cmd._cmds.push(this);
+      if (this._name) {
+        this._cmd._cmdsByName[this._name] = this;
+      }
+    }
+    return this;
+  };
+
+  /**
+  Set a canonical command identifier to be used anywhere in the API.
+  @param {String} _name command name
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.name = function(_name) {
+    this._name = _name;
+    if (this._cmd !== this) {
+      this._cmd._cmdsByName[_name] = this;
+    }
+    return this;
+  };
+
+  /**
+  Set a long description for command to be used anywhere in text messages.
+  @param {String} _title command title
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.title = function(_title) {
+    this._title = _title;
+    return this;
+  };
+
+  /**
+  Create new or add existing subcommand for current command.
+  @param {COA.Cmd} [cmd] existing command instance
+  @returns {COA.Cmd} new subcommand instance
+  */
+
+
+  Cmd.prototype.cmd = function(cmd) {
+    if (cmd) {
+      return cmd._parent(this);
+    } else {
+      return new Cmd(this);
+    }
+  };
+
+  /**
+  Create option for current command.
+  @returns {COA.Opt} new option instance
+  */
+
+
+  Cmd.prototype.opt = function() {
+    return new (require('./opt').Opt)(this);
+  };
+
+  /**
+  Create argument for current command.
+  @returns {COA.Opt} new argument instance
+  */
+
+
+  Cmd.prototype.arg = function() {
+    return new (require('./arg').Arg)(this);
+  };
+
+  /**
+  Add (or set) action for current command.
+  @param {Function} act action function,
+      invoked in the context of command instance
+      and has the parameters:
+          - {Object} opts parsed options
+          - {Array} args parsed arguments
+          - {Object} res actions result accumulator
+      It can return rejected promise by Cmd.reject (in case of error)
+      or any other value treated as result.
+  @param {Boolean} [force=false] flag for set action instead add to existings
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.act = function(act, force) {
+    if (!act) {
+      return this;
+    }
+    if (!force && this._act) {
+      this._act.push(act);
+    } else {
+      this._act = [act];
+    }
+    return this;
+  };
+
+  /**
+  Set custom additional completion for current command.
+  @param {Function} completion generation function,
+      invoked in the context of command instance.
+      Accepts parameters:
+          - {Object} opts completion options
+      It can return promise or any other value treated as result.
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.comp = function(_comp) {
+    this._comp = _comp;
+    return this;
+  };
+
+  /**
+  Apply function with arguments in context of command instance.
+  @param {Function} fn
+  @param {Array} args
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.apply = function() {
+    var args, fn;
+    fn = arguments[0], args = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
+    fn.apply(this, args);
+    return this;
+  };
+
+  /**
+  Make command "helpful", i.e. add -h --help flags for print usage.
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.helpful = function() {
+    return this.opt().name('help').title('Help').short('h').long('help').flag().only().act(function() {
+      return this.usage();
+    }).end();
+  };
+
+  /**
+  Adds shell completion to command, adds "completion" subcommand,
+  that makes all the magic.
+  Must be called only on root command.
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.completable = function() {
+    return this.cmd().name('completion').apply(require('./completion')).end();
+  };
+
+  /**
+  Allow command to be extendable by external node.js modules.
+  @param {String} [pattern]  Pattern of node.js module to find subcommands at.
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.extendable = function(pattern) {
+    this._ext = pattern || true;
+    return this;
+  };
+
+  Cmd.prototype._exit = function(msg, code) {
+    return process.once('exit', function() {
+      if (msg) {
+        console.error(msg);
+      }
+      return process.exit(code || 0);
+    });
+  };
+
+  /**
+  Build full usage text for current command instance.
+  @returns {String} usage text
+  */
+
+
+  Cmd.prototype.usage = function() {
+    var res;
+    res = [];
+    if (this._title) {
+      res.push(this._fullTitle());
+    }
+    res.push('', 'Usage:');
+    if (this._cmds.length) {
+      res.push(['', '', Color('lred', this._fullName()), Color('lblue', 'COMMAND'), Color('lgreen', '[OPTIONS]'), Color('lpurple', '[ARGS]')].join(' '));
+    }
+    if (this._opts.length + this._args.length) {
+      res.push(['', '', Color('lred', this._fullName()), Color('lgreen', '[OPTIONS]'), Color('lpurple', '[ARGS]')].join(' '));
+    }
+    res.push(this._usages(this._cmds, 'Commands'), this._usages(this._opts, 'Options'), this._usages(this._args, 'Arguments'));
+    return res.join('\n');
+  };
+
+  Cmd.prototype._usage = function() {
+    return Color('lblue', this._name) + ' : ' + this._title;
+  };
+
+  Cmd.prototype._usages = function(os, title) {
+    var o, res, _i, _len;
+    if (!os.length) {
+      return;
+    }
+    res = ['', title + ':'];
+    for (_i = 0, _len = os.length; _i < _len; _i++) {
+      o = os[_i];
+      res.push('  ' + o._usage());
+    }
+    return res.join('\n');
+  };
+
+  Cmd.prototype._fullTitle = function() {
+    return (this._cmd === this ? '' : this._cmd._fullTitle() + '\n') + this._title;
+  };
+
+  Cmd.prototype._fullName = function() {
+    return (this._cmd === this ? '' : this._cmd._fullName() + ' ') + PATH.basename(this._name);
+  };
+
+  Cmd.prototype._ejectOpt = function(opts, opt) {
+    var pos;
+    if ((pos = opts.indexOf(opt)) >= 0) {
+      if (opts[pos]._arr) {
+        return opts[pos];
+      } else {
+        return opts.splice(pos, 1)[0];
+      }
+    }
+  };
+
+  Cmd.prototype._checkRequired = function(opts, args) {
+    var all, i;
+    if (!(this._opts.filter(function(o) {
+      return o._only && o._name in opts;
+    })).length) {
+      all = this._opts.concat(this._args);
+      while (i = all.shift()) {
+        if (i._req && i._checkParsed(opts, args)) {
+          return this.reject(i._requiredText());
+        }
+      }
+    }
+  };
+
+  Cmd.prototype._parseCmd = function(argv, unparsed) {
+    var c, cmd, cmdDesc, e, i, optSeen, pkg;
+    if (unparsed == null) {
+      unparsed = [];
+    }
+    argv = argv.concat();
+    optSeen = false;
+    while (i = argv.shift()) {
+      if (!i.indexOf('-')) {
+        optSeen = true;
+      }
+      if (!optSeen && /^\w[\w-_]*$/.test(i)) {
+        cmd = this._cmdsByName[i];
+        if (!cmd && this._ext) {
+          if (typeof this._ext === 'string') {
+            if (~this._ext.indexOf('%s')) {
+              pkg = UTIL.format(this._ext, i);
+            } else {
+              pkg = this._ext + i;
+            }
+          } else if (this._ext === true) {
+            pkg = i;
+            c = this;
+            while (true) {
+              pkg = c._name + '-' + pkg;
+              if (c._cmd === c) {
+                break;
+              }
+              c = c._cmd;
+            }
+          }
+          try {
+            cmdDesc = require(pkg);
+          } catch (_error) {
+            e = _error;
+          }
+          if (cmdDesc) {
+            if (typeof cmdDesc === 'function') {
+              this.cmd().name(i).apply(cmdDesc).end();
+            } else if (typeof cmdDesc === 'object') {
+              this.cmd(cmdDesc);
+              cmdDesc.name(i);
+            } else {
+              throw new Error('Error: Unsupported command declaration type, ' + 'should be function or COA.Cmd() object');
+            }
+            cmd = this._cmdsByName[i];
+          }
+        }
+        if (cmd) {
+          return cmd._parseCmd(argv, unparsed);
+        }
+      }
+      unparsed.push(i);
+    }
+    return {
+      cmd: this,
+      argv: unparsed
+    };
+  };
+
+  Cmd.prototype._parseOptsAndArgs = function(argv) {
+    var a, arg, args, i, m, nonParsedArgs, nonParsedOpts, opt, opts, res;
+    opts = {};
+    args = {};
+    nonParsedOpts = this._opts.concat();
+    nonParsedArgs = this._args.concat();
+    while (i = argv.shift()) {
+      if (i !== '--' && !i.indexOf('-')) {
+        if (m = i.match(/^(--\w[\w-_]*)=(.*)$/)) {
+          i = m[1];
+          if (!this._optsByKey[i]._flag) {
+            argv.unshift(m[2]);
+          }
+        }
+        if (opt = this._ejectOpt(nonParsedOpts, this._optsByKey[i])) {
+          if (Q.isRejected(res = opt._parse(argv, opts))) {
+            return res;
+          }
+        } else {
+          return this.reject("Unknown option: " + i);
+        }
+      } else {
+        if (i === '--') {
+          i = argv.splice(0);
+        }
+        i = Array.isArray(i) ? i : [i];
+        while (a = i.shift()) {
+          if (arg = nonParsedArgs.shift()) {
+            if (arg._arr) {
+              nonParsedArgs.unshift(arg);
+            }
+            if (Q.isRejected(res = arg._parse(a, args))) {
+              return res;
+            }
+          } else {
+            return this.reject("Unknown argument: " + a);
+          }
+        }
+      }
+    }
+    return {
+      opts: this._setDefaults(opts, nonParsedOpts),
+      args: this._setDefaults(args, nonParsedArgs)
+    };
+  };
+
+  Cmd.prototype._setDefaults = function(params, desc) {
+    var i, _i, _len;
+    for (_i = 0, _len = desc.length; _i < _len; _i++) {
+      i = desc[_i];
+      if (!(i._name in params) && '_def' in i) {
+        i._saveVal(params, i._def);
+      }
+    }
+    return params;
+  };
+
+  Cmd.prototype._processParams = function(params, desc) {
+    var i, n, notExists, res, v, vals, _i, _j, _len, _len1;
+    notExists = [];
+    for (_i = 0, _len = desc.length; _i < _len; _i++) {
+      i = desc[_i];
+      n = i._name;
+      if (!(n in params)) {
+        notExists.push(i);
+        continue;
+      }
+      vals = params[n];
+      delete params[n];
+      if (!Array.isArray(vals)) {
+        vals = [vals];
+      }
+      for (_j = 0, _len1 = vals.length; _j < _len1; _j++) {
+        v = vals[_j];
+        if (Q.isRejected(res = i._saveVal(params, v))) {
+          return res;
+        }
+      }
+    }
+    return this._setDefaults(params, notExists);
+  };
+
+  Cmd.prototype._parseArr = function(argv) {
+    return Q.when(this._parseCmd(argv), function(p) {
+      return Q.when(p.cmd._parseOptsAndArgs(p.argv), function(r) {
+        return {
+          cmd: p.cmd,
+          opts: r.opts,
+          args: r.args
+        };
+      });
+    });
+  };
+
+  Cmd.prototype._do = function(input) {
+    var _this = this;
+    return Q.when(input, function(input) {
+      var cmd;
+      cmd = input.cmd;
+      return [_this._checkRequired].concat(cmd._act || []).reduce(function(res, act) {
+        return Q.when(res, function(res) {
+          return act.call(cmd, input.opts, input.args, res);
+        });
+      }, void 0);
+    });
+  };
+
+  /**
+  Parse arguments from simple format like NodeJS process.argv
+  and run ahead current program, i.e. call process.exit when all actions done.
+  @param {Array} argv
+  @returns {COA.Cmd} this instance (for chainability)
+  */
+
+
+  Cmd.prototype.run = function(argv) {
+    var cb,
+      _this = this;
+    if (argv == null) {
+      argv = process.argv.slice(2);
+    }
+    cb = function(code) {
+      return function(res) {
+        var _ref, _ref1;
+        if (res) {
+          return _this._exit((_ref = res.stack) != null ? _ref : res.toString(), (_ref1 = res.exitCode) != null ? _ref1 : code);
+        } else {
+          return _this._exit();
+        }
+      };
+    };
+    Q.when(this["do"](argv), cb(0), cb(1)).done();
+    return this;
+  };
+
+  /**
+  Convenient function to run command from tests.
+  @param {Array} argv
+  @returns {Q.Promise}
+  */
+
+
+  Cmd.prototype["do"] = function(argv) {
+    return this._do(this._parseArr(argv || []));
+  };
+
+  /**
+  Invoke specified (or current) command using provided
+  options and arguments.
+  @param {String|Array} cmds  subcommand to invoke (optional)
+  @param {Object} opts  command options (optional)
+  @param {Object} args  command arguments (optional)
+  @returns {Q.Promise}
+  */
+
+
+  Cmd.prototype.invoke = function(cmds, opts, args) {
+    var _this = this;
+    if (cmds == null) {
+      cmds = [];
+    }
+    if (opts == null) {
+      opts = {};
+    }
+    if (args == null) {
+      args = {};
+    }
+    if (typeof cmds === 'string') {
+      cmds = cmds.split(' ');
+    }
+    if (arguments.length < 3) {
+      if (!Array.isArray(cmds)) {
+        args = opts;
+        opts = cmds;
+        cmds = [];
+      }
+    }
+    return Q.when(this._parseCmd(cmds), function(p) {
+      if (p.argv.length) {
+        return _this.reject("Unknown command: " + cmds.join(' '));
+      }
+      return Q.all([_this._processParams(opts, _this._opts), _this._processParams(args, _this._args)]).spread(function(opts, args) {
+        return _this._do({
+          cmd: p.cmd,
+          opts: opts,
+          args: args
+        }).fail(function(res) {
+          if (res && res.exitCode === 0) {
+            return res.toString();
+          } else {
+            return _this.reject(res);
+          }
+        });
+      });
+    });
+  };
+
+  /**
+  Return reject of actions results promise with error code.
+  Use in .act() for return with error.
+  @param {Object} reject reason
+      You can customize toString() method and exitCode property
+      of reason object.
+  @returns {Q.promise} rejected promise
+  */
+
+
+  Cmd.prototype.reject = function(reason) {
+    return Q.reject(reason);
+  };
+
+  /**
+  Finish chain for current subcommand and return parent command instance.
+  @returns {COA.Cmd} parent command
+  */
+
+
+  Cmd.prototype.end = function() {
+    return this._cmd;
+  };
+
+  return Cmd;
+
+})();
diff --git a/node_modules/coa/lib/color.js b/node_modules/coa/lib/color.js
new file mode 100644
index 00000000..7271c8c8
--- /dev/null
+++ b/node_modules/coa/lib/color.js
@@ -0,0 +1,25 @@
+// Generated by CoffeeScript 1.6.3
+var colors;
+
+colors = {
+  black: '30',
+  dgray: '1;30',
+  red: '31',
+  lred: '1;31',
+  green: '32',
+  lgreen: '1;32',
+  brown: '33',
+  yellow: '1;33',
+  blue: '34',
+  lblue: '1;34',
+  purple: '35',
+  lpurple: '1;35',
+  cyan: '36',
+  lcyan: '1;36',
+  lgray: '37',
+  white: '1;37'
+};
+
+exports.Color = function(c, str) {
+  return ['\x1B[', colors[c], 'm', str, '\x1B[m'].join('');
+};
diff --git a/node_modules/coa/lib/completion.js b/node_modules/coa/lib/completion.js
new file mode 100644
index 00000000..a4b1edcb
--- /dev/null
+++ b/node_modules/coa/lib/completion.js
@@ -0,0 +1,134 @@
+// Generated by CoffeeScript 1.6.3
+/**
+Most of the code adopted from the npm package shell completion code.
+See https://github.com/isaacs/npm/blob/master/lib/completion.js
+*/
+
+var Q, complete, dumpScript, escape, getOpts, unescape;
+
+Q = require('q');
+
+escape = require('./shell').escape;
+
+unescape = require('./shell').unescape;
+
+module.exports = function() {
+  return this.title('Shell completion').helpful().arg().name('raw').title('Completion words').arr().end().act(function(opts, args) {
+    var argv, cmd, e, _ref;
+    if (process.platform === 'win32') {
+      e = new Error('shell completion not supported on windows');
+      e.code = 'ENOTSUP';
+      e.errno = require('constants').ENOTSUP;
+      return this.reject(e);
+    }
+    if ((process.env.COMP_CWORD == null) || (process.env.COMP_LINE == null) || (process.env.COMP_POINT == null)) {
+      return dumpScript(this._cmd._name);
+    }
+    console.error('COMP_LINE:  %s', process.env.COMP_LINE);
+    console.error('COMP_CWORD: %s', process.env.COMP_CWORD);
+    console.error('COMP_POINT: %s', process.env.COMP_POINT);
+    console.error('args: %j', args.raw);
+    opts = getOpts(args.raw);
+    _ref = this._cmd._parseCmd(opts.partialWords), cmd = _ref.cmd, argv = _ref.argv;
+    return Q.when(complete(cmd, opts), function(compls) {
+      console.error('filtered: %j', compls);
+      return console.log(compls.map(escape).join('\n'));
+    });
+  });
+};
+
+dumpScript = function(name) {
+  var defer, fs, path;
+  fs = require('fs');
+  path = require('path');
+  defer = Q.defer();
+  fs.readFile(path.resolve(__dirname, 'completion.sh'), 'utf8', function(err, d) {
+    var onError;
+    if (err) {
+      return defer.reject(err);
+    }
+    d = d.replace(/{{cmd}}/g, path.basename(name)).replace(/^\#\!.*?\n/, '');
+    onError = function(err) {
+      if (err.errno === require('constants').EPIPE) {
+        process.stdout.removeListener('error', onError);
+        return defer.resolve();
+      } else {
+        return defer.reject(err);
+      }
+    };
+    process.stdout.on('error', onError);
+    return process.stdout.write(d, function() {
+      return defer.resolve();
+    });
+  });
+  return defer.promise;
+};
+
+getOpts = function(argv) {
+  var i, line, partialLine, partialWord, partialWords, point, w, word, words;
+  line = process.env.COMP_LINE;
+  w = +process.env.COMP_CWORD;
+  point = +process.env.COMP_POINT;
+  words = argv.map(unescape);
+  word = words[w];
+  partialLine = line.substr(0, point);
+  partialWords = words.slice(0, w);
+  partialWord = argv[w] || '';
+  i = partialWord.length;
+  while (partialWord.substr(0, i) !== partialLine.substr(-1 * i) && i > 0) {
+    i--;
+  }
+  partialWord = unescape(partialWord.substr(0, i));
+  if (partialWord) {
+    partialWords.push(partialWord);
+  }
+  return {
+    line: line,
+    w: w,
+    point: point,
+    words: words,
+    word: word,
+    partialLine: partialLine,
+    partialWords: partialWords,
+    partialWord: partialWord
+  };
+};
+
+complete = function(cmd, opts) {
+  var compls, m, o, opt, optPrefix, optWord;
+  compls = [];
+  if (opts.partialWord.indexOf('-')) {
+    compls = Object.keys(cmd._cmdsByName);
+  } else {
+    if (m = opts.partialWord.match(/^(--\w[\w-_]*)=(.*)$/)) {
+      optWord = m[1];
+      optPrefix = optWord + '=';
+    } else {
+      compls = Object.keys(cmd._optsByKey);
+    }
+  }
+  if (!(o = opts.partialWords[opts.w - 1]).indexOf('-')) {
+    optWord = o;
+  }
+  if (optWord && (opt = cmd._optsByKey[optWord])) {
+    if (!opt._flag && opt._comp) {
+      compls = Q.join(compls, Q.when(opt._comp(opts), function(c, o) {
+        return c.concat(o.map(function(v) {
+          return (optPrefix || '') + v;
+        }));
+      }));
+    }
+  }
+  if (cmd._comp) {
+    compls = Q.join(compls, Q.when(cmd._comp(opts)), function(c, o) {
+      return c.concat(o);
+    });
+  }
+  return Q.when(compls, function(compls) {
+    console.error('partialWord: %s', opts.partialWord);
+    console.error('compls: %j', compls);
+    return compls.filter(function(c) {
+      return c.indexOf(opts.partialWord) === 0;
+    });
+  });
+};
diff --git a/node_modules/coa/lib/completion.sh b/node_modules/coa/lib/completion.sh
new file mode 100644
index 00000000..6d15c871
--- /dev/null
+++ b/node_modules/coa/lib/completion.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+###-begin-{{cmd}}-completion-###
+#
+# {{cmd}} command completion script
+#
+# Installation: {{cmd}} completion >> ~/.bashrc  (or ~/.zshrc)
+# Or, maybe: {{cmd}} completion > /usr/local/etc/bash_completion.d/{{cmd}}
+#
+
+COMP_WORDBREAKS=${COMP_WORDBREAKS/=/}
+COMP_WORDBREAKS=${COMP_WORDBREAKS/@/}
+export COMP_WORDBREAKS
+
+if complete &>/dev/null; then
+  _{{cmd}}_completion () {
+    local si="$IFS"
+    IFS=$'\n' COMPREPLY=($(COMP_CWORD="$COMP_CWORD" \
+                           COMP_LINE="$COMP_LINE" \
+                           COMP_POINT="$COMP_POINT" \
+                           {{cmd}} completion -- "${COMP_WORDS[@]}" \
+                           2>/dev/null)) || return $?
+    IFS="$si"
+  }
+  complete -F _{{cmd}}_completion {{cmd}}
+elif compctl &>/dev/null; then
+  _{{cmd}}_completion () {
+    local cword line point words si
+    read -Ac words
+    read -cn cword
+    let cword-=1
+    read -l line
+    read -ln point
+    si="$IFS"
+    IFS=$'\n' reply=($(COMP_CWORD="$cword" \
+                       COMP_LINE="$line" \
+                       COMP_POINT="$point" \
+                       {{cmd}} completion -- "${words[@]}" \
+                       2>/dev/null)) || return $?
+    IFS="$si"
+  }
+  compctl -K _{{cmd}}_completion {{cmd}}
+fi
+###-end-{{cmd}}-completion-###
diff --git a/node_modules/coa/lib/index.js b/node_modules/coa/lib/index.js
new file mode 100644
index 00000000..05b89221
--- /dev/null
+++ b/node_modules/coa/lib/index.js
@@ -0,0 +1,10 @@
+// Generated by CoffeeScript 1.6.3
+exports.Cmd = require('./cmd').Cmd;
+
+exports.Opt = require('./cmd').Opt;
+
+exports.Arg = require('./cmd').Arg;
+
+exports.shell = require('./shell');
+
+exports.require = require;
diff --git a/node_modules/coa/lib/opt.js b/node_modules/coa/lib/opt.js
new file mode 100644
index 00000000..9aaca543
--- /dev/null
+++ b/node_modules/coa/lib/opt.js
@@ -0,0 +1,338 @@
+// Generated by CoffeeScript 1.6.3
+var Cmd, Color, Opt, Q, fs;
+
+fs = require('fs');
+
+Q = require('q');
+
+Color = require('./color').Color;
+
+Cmd = require('./cmd').Cmd;
+
+/**
+Option
+
+Named entity. Options may have short and long keys for use from command line.
+@namespace
+@class Presents option
+*/
+
+
+exports.Opt = Opt = (function() {
+  /**
+  @constructs
+  @param {COA.Cmd} cmd parent command
+  */
+
+  function Opt(_cmd) {
+    this._cmd = _cmd;
+    this._cmd._opts.push(this);
+  }
+
+  /**
+  Set a canonical option identifier to be used anywhere in the API.
+  @param {String} _name option name
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.name = function(_name) {
+    this._name = _name;
+    return this;
+  };
+
+  /**
+  Set a long description for option to be used anywhere in text messages.
+  @param {String} _title option title
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.title = Cmd.prototype.title;
+
+  /**
+  Set a short key for option to be used with one hyphen from command line.
+  @param {String} _short
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.short = function(_short) {
+    this._short = _short;
+    return this._cmd._optsByKey['-' + _short] = this;
+  };
+
+  /**
+  Set a short key for option to be used with double hyphens from command line.
+  @param {String} _long
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.long = function(_long) {
+    this._long = _long;
+    return this._cmd._optsByKey['--' + _long] = this;
+  };
+
+  /**
+  Make an option boolean, i.e. option without value.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.flag = function() {
+    this._flag = true;
+    return this;
+  };
+
+  /**
+  Makes an option accepts multiple values.
+  Otherwise, the value will be used by the latter passed.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.arr = function() {
+    this._arr = true;
+    return this;
+  };
+
+  /**
+  Makes an option required.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.req = function() {
+    this._req = true;
+    return this;
+  };
+
+  /**
+  Makes an option to act as a command,
+  i.e. program will exit just after option action.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.only = function() {
+    this._only = true;
+    return this;
+  };
+
+  /**
+  Set a validation (or value) function for option.
+  Value from command line passes through before becoming available from API.
+  Using for validation and convertion simple types to any values.
+  @param {Function} _val validating function,
+      invoked in the context of option instance
+      and has one parameter with value from command line
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.val = function(_val) {
+    this._val = _val;
+    return this;
+  };
+
+  /**
+  Set a default value for option.
+  Default value passed through validation function as ordinary value.
+  @param {Object} _def
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.def = function(_def) {
+    this._def = _def;
+    return this;
+  };
+
+  /**
+  Make option value inputting stream.
+  It's add useful validation and shortcut for STDIN.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.input = function() {
+    process.stdin.pause();
+    return this.def(process.stdin).val(function(v) {
+      var s;
+      if (typeof v === 'string') {
+        if (v === '-') {
+          return process.stdin;
+        } else {
+          s = fs.createReadStream(v, {
+            encoding: 'utf8'
+          });
+          s.pause();
+          return s;
+        }
+      } else {
+        return v;
+      }
+    });
+  };
+
+  /**
+  Make option value outputing stream.
+  It's add useful validation and shortcut for STDOUT.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.output = function() {
+    return this.def(process.stdout).val(function(v) {
+      if (typeof v === 'string') {
+        if (v === '-') {
+          return process.stdout;
+        } else {
+          return fs.createWriteStream(v, {
+            encoding: 'utf8'
+          });
+        }
+      } else {
+        return v;
+      }
+    });
+  };
+
+  /**
+  Add action for current option command.
+  This action is performed if the current option
+  is present in parsed options (with any value).
+  @param {Function} act action function,
+      invoked in the context of command instance
+      and has the parameters:
+          - {Object} opts parsed options
+          - {Array} args parsed arguments
+          - {Object} res actions result accumulator
+      It can return rejected promise by Cmd.reject (in case of error)
+      or any other value treated as result.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.act = function(act) {
+    var name, opt;
+    opt = this;
+    name = this._name;
+    this._cmd.act(function(opts) {
+      var res,
+        _this = this;
+      if (name in opts) {
+        res = act.apply(this, arguments);
+        if (opt._only) {
+          return Q.when(res, function(res) {
+            return _this.reject({
+              toString: function() {
+                return res.toString();
+              },
+              exitCode: 0
+            });
+          });
+        } else {
+          return res;
+        }
+      }
+    });
+    return this;
+  };
+
+  /**
+  Set custom additional completion for current option.
+  @param {Function} completion generation function,
+      invoked in the context of option instance.
+      Accepts parameters:
+          - {Object} opts completion options
+      It can return promise or any other value treated as result.
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.comp = Cmd.prototype.comp;
+
+  Opt.prototype._saveVal = function(opts, val) {
+    var _name;
+    if (this._val) {
+      val = this._val(val);
+    }
+    if (this._arr) {
+      (opts[_name = this._name] || (opts[_name] = [])).push(val);
+    } else {
+      opts[this._name] = val;
+    }
+    return val;
+  };
+
+  Opt.prototype._parse = function(argv, opts) {
+    return this._saveVal(opts, this._flag ? true : argv.shift());
+  };
+
+  Opt.prototype._checkParsed = function(opts, args) {
+    return !opts.hasOwnProperty(this._name);
+  };
+
+  Opt.prototype._usage = function() {
+    var nameStr, res;
+    res = [];
+    nameStr = this._name.toUpperCase();
+    if (this._short) {
+      res.push('-', Color('lgreen', this._short));
+      if (!this._flag) {
+        res.push(' ' + nameStr);
+      }
+      res.push(', ');
+    }
+    if (this._long) {
+      res.push('--', Color('green', this._long));
+      if (!this._flag) {
+        res.push('=' + nameStr);
+      }
+    }
+    res.push(' : ', this._title);
+    if (this._req) {
+      res.push(' ', Color('lred', '(required)'));
+    }
+    return res.join('');
+  };
+
+  Opt.prototype._requiredText = function() {
+    return 'Missing required option:\n  ' + this._usage();
+  };
+
+  /**
+  Return rejected promise with error code.
+  Use in .val() for return with error.
+  @param {Object} reject reason
+      You can customize toString() method and exitCode property
+      of reason object.
+  @returns {Q.promise} rejected promise
+  */
+
+
+  Opt.prototype.reject = Cmd.prototype.reject;
+
+  /**
+  Finish chain for current option and return parent command instance.
+  @returns {COA.Cmd} parent command
+  */
+
+
+  Opt.prototype.end = Cmd.prototype.end;
+
+  /**
+  Apply function with arguments in context of option instance.
+  @param {Function} fn
+  @param {Array} args
+  @returns {COA.Opt} this instance (for chainability)
+  */
+
+
+  Opt.prototype.apply = Cmd.prototype.apply;
+
+  return Opt;
+
+})();
diff --git a/node_modules/coa/lib/shell.js b/node_modules/coa/lib/shell.js
new file mode 100644
index 00000000..f3d49662
--- /dev/null
+++ b/node_modules/coa/lib/shell.js
@@ -0,0 +1,14 @@
+// Generated by CoffeeScript 1.6.3
+exports.unescape = function(w) {
+  w = w.charAt(0) === '"' ? w.replace(/^"|([^\\])"$/g, '$1') : w.replace(/\\ /g, ' ');
+  return w.replace(/\\("|'|\$|`|\\)/g, '$1');
+};
+
+exports.escape = function(w) {
+  w = w.replace(/(["'$`\\])/g, '\\$1');
+  if (w.match(/\s+/)) {
+    return '"' + w + '"';
+  } else {
+    return w;
+  }
+};
diff --git a/node_modules/coa/package.json b/node_modules/coa/package.json
new file mode 100644
index 00000000..925b4859
--- /dev/null
+++ b/node_modules/coa/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "coa",
+  "description": "Command-Option-Argument: Yet another parser for command line options.",
+  "version": "1.0.4",
+  "homepage": "http://github.com/veged/coa",
+  "author": "Sergey Berezhnoy <veged@ya.ru> (http://github.com/veged)",
+  "maintainers": [
+    "Sergey Berezhnoy <veged@ya.ru> (http://github.com/veged)",
+    "Sergey Belov <peimei@ya.ru> (http://github.com/arikon)"
+  ],
+  "contributors": [
+    "Sergey Belov <peimei@ya.ru> (http://github.com/arikon)"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/veged/coa.git"
+  },
+  "directories": {
+    "lib": "./lib"
+  },
+  "dependencies": {
+    "q": "^1.1.2"
+  },
+  "devDependencies": {
+    "coffee-script": "~1.6.3",
+    "istanbul": "~0.1.40",
+    "mocha-istanbul": "*",
+    "mocha": "~1.21.4",
+    "chai": "~1.7.2"
+  },
+  "scripts": {
+    "test": "make test",
+    "coverage": "make coverage"
+  },
+  "engines": {
+    "node": ">= 0.8.0"
+  },
+  "licenses": [
+    {
+      "type": "MIT"
+    }
+  ],
+  "optionalDependencies": {}
+}
diff --git a/node_modules/coa/qq.js b/node_modules/coa/qq.js
new file mode 100644
index 00000000..4aeb9844
--- /dev/null
+++ b/node_modules/coa/qq.js
@@ -0,0 +1,17 @@
+const run = require('./test/util').run;
+
+// run(cmd => cmd.arg().name('qwe').end().arg().name('zxc').end().act(function(opts, args) { console.log({opts, args}); }), ['qwe', 'zxc']) // cmd and args
+//     .then(res => {
+//         // code
+//         // stdout
+//         // stderr
+//         console.log(res);
+//     });
+
+run(cmd => cmd.opt().name('version').short('v').only().flag().act((opts) => { return 'aasd'; }), ['-v']) // cmd and args
+    .then(res => {
+        // code
+        // stdout
+        // stderr
+        console.log(res);
+    });
diff --git a/node_modules/coa/src/arg.coffee b/node_modules/coa/src/arg.coffee
new file mode 100644
index 00000000..da57dff0
--- /dev/null
+++ b/node_modules/coa/src/arg.coffee
@@ -0,0 +1,130 @@
+Color = require('./color').Color
+Cmd = require('./cmd').Cmd
+Opt = require('./opt').Opt
+
+###*
+Argument
+
+Unnamed entity. From command line arguments passed as list of unnamed values.
+@namespace
+@class Presents argument
+###
+exports.Arg = class Arg
+
+    ###*
+    @constructs
+    @param {COA.Cmd} cmd parent command
+    ###
+    constructor: (@_cmd) -> @_cmd._args.push @
+
+    ###*
+    Set a canonical argument identifier to be used anywhere in text messages.
+    @param {String} _name argument name
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    name: Opt::name
+
+    ###*
+    Set a long description for argument to be used anywhere in text messages.
+    @param {String} _title argument title
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    title: Cmd::title
+
+    ###*
+    Makes an argument accepts multiple values.
+    Otherwise, the value will be used by the latter passed.
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    arr: Opt::arr
+
+    ###*
+    Makes an argument required.
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    req: Opt::req
+
+    ###*
+    Set a validation (or value) function for argument.
+    Value from command line passes through before becoming available from API.
+    Using for validation and convertion simple types to any values.
+    @param {Function} _val validating function,
+        invoked in the context of argument instance
+        and has one parameter with value from command line
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    val: Opt::val
+
+    ###*
+    Set a default value for argument.
+    Default value passed through validation function as ordinary value.
+    @param {Object} _def
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    def: Opt::def
+
+    ###*
+    Set custom additional completion for current argument.
+    @param {Function} completion generation function,
+        invoked in the context of argument instance.
+        Accepts parameters:
+            - {Object} opts completion options
+        It can return promise or any other value treated as result.
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    comp: Cmd::comp
+
+    ###*
+    Make argument value inputting stream.
+    It's add useful validation and shortcut for STDIN.
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    input: Opt::input
+
+    ###*
+    Make argument value outputing stream.
+    It's add useful validation and shortcut for STDOUT.
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    output: Opt::output
+
+    _parse: (arg, args) ->
+        @_saveVal(args, arg)
+
+    _saveVal: Opt::_saveVal
+
+    _checkParsed: (opts, args) -> not args.hasOwnProperty(@_name)
+
+    _usage: ->
+        res = []
+
+        res.push Color('lpurple', @_name.toUpperCase()), ' : ', @_title
+        if @_req then res.push ' ', Color('lred', '(required)')
+
+        res.join ''
+
+    _requiredText: -> 'Missing required argument:\n  ' + @_usage()
+
+    ###*
+    Return rejected promise with error code.
+    Use in .val() for return with error.
+    @param {Object} reject reason
+        You can customize toString() method and exitCode property
+        of reason object.
+    @returns {Q.promise} rejected promise
+    ###
+    reject: Cmd::reject
+
+    ###*
+    Finish chain for current option and return parent command instance.
+    @returns {COA.Cmd} parent command
+    ###
+    end: Cmd::end
+
+    ###*
+    Apply function with arguments in context of arg instance.
+    @param {Function} fn
+    @param {Array} args
+    @returns {COA.Arg} this instance (for chainability)
+    ###
+    apply: Cmd::apply
diff --git a/node_modules/coa/src/cmd.coffee b/node_modules/coa/src/cmd.coffee
new file mode 100644
index 00000000..bde16248
--- /dev/null
+++ b/node_modules/coa/src/cmd.coffee
@@ -0,0 +1,456 @@
+UTIL = require 'util'
+PATH = require 'path'
+Color = require('./color').Color
+Q = require('q')
+
+#inspect = require('eyes').inspector { maxLength: 99999, stream: process.stderr }
+
+###*
+Command
+
+Top level entity. Commands may have options and arguments.
+@namespace
+@class Presents command
+###
+exports.Cmd = class Cmd
+
+    ###*
+    @constructs
+    @param {COA.Cmd} [cmd] parent command
+    ###
+    constructor: (cmd) ->
+        if this not instanceof Cmd
+            return new Cmd cmd
+
+        @_parent cmd
+
+        @_cmds = []
+        @_cmdsByName = {}
+
+        @_opts = []
+        @_optsByKey = {}
+
+        @_args = []
+
+        @_ext = false
+
+    @get: (propertyName, func) ->
+        Object.defineProperty @::, propertyName,
+            configurable: true
+            enumerable: true
+            get: func
+
+    ###*
+    Returns object containing all its subcommands as methods
+    to use from other programs.
+    @returns {Object}
+    ###
+    @get 'api', () ->
+        if not @_api
+            @_api = => @invoke.apply @, arguments
+        for c of @_cmdsByName
+            do (c) =>
+                @_api[c] = @_cmdsByName[c].api
+        @_api
+
+    _parent: (cmd) ->
+        @_cmd = cmd or this
+        if cmd
+            cmd._cmds.push @
+            if @_name then @_cmd._cmdsByName[@_name] = @
+        @
+
+    ###*
+    Set a canonical command identifier to be used anywhere in the API.
+    @param {String} _name command name
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    name: (@_name) ->
+        if @_cmd isnt @ then @_cmd._cmdsByName[_name] = @
+        @
+
+    ###*
+    Set a long description for command to be used anywhere in text messages.
+    @param {String} _title command title
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    title: (@_title) -> @
+
+    ###*
+    Create new or add existing subcommand for current command.
+    @param {COA.Cmd} [cmd] existing command instance
+    @returns {COA.Cmd} new subcommand instance
+    ###
+    cmd: (cmd) ->
+        if cmd then cmd._parent @
+        else new Cmd @
+
+    ###*
+    Create option for current command.
+    @returns {COA.Opt} new option instance
+    ###
+    opt: -> new (require('./opt').Opt) @
+
+    ###*
+    Create argument for current command.
+    @returns {COA.Opt} new argument instance
+    ###
+    arg: -> new (require('./arg').Arg) @
+
+    ###*
+    Add (or set) action for current command.
+    @param {Function} act action function,
+        invoked in the context of command instance
+        and has the parameters:
+            - {Object} opts parsed options
+            - {Array} args parsed arguments
+            - {Object} res actions result accumulator
+        It can return rejected promise by Cmd.reject (in case of error)
+        or any other value treated as result.
+    @param {Boolean} [force=false] flag for set action instead add to existings
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    act: (act, force) ->
+        return @ unless act
+
+        if not force and @_act
+            @_act.push act
+        else
+            @_act = [act]
+
+        @
+
+    ###*
+    Set custom additional completion for current command.
+    @param {Function} completion generation function,
+        invoked in the context of command instance.
+        Accepts parameters:
+            - {Object} opts completion options
+        It can return promise or any other value treated as result.
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    comp: (@_comp) -> @
+
+    ###*
+    Apply function with arguments in context of command instance.
+    @param {Function} fn
+    @param {Array} args
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    apply: (fn, args...) ->
+        fn.apply this, args
+        @
+
+    ###*
+    Make command "helpful", i.e. add -h --help flags for print usage.
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    helpful: ->
+        @opt()
+            .name('help').title('Help')
+            .short('h').long('help')
+            .flag()
+            .only()
+            .act ->
+                return @usage()
+            .end()
+
+    ###*
+    Adds shell completion to command, adds "completion" subcommand,
+    that makes all the magic.
+    Must be called only on root command.
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    completable: ->
+        @cmd()
+            .name('completion')
+            .apply(require './completion')
+            .end()
+
+    ###*
+    Allow command to be extendable by external node.js modules.
+    @param {String} [pattern]  Pattern of node.js module to find subcommands at.
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    extendable: (pattern) ->
+        @_ext = pattern or true
+        @
+
+    _exit: (msg, code) ->
+        process.once 'exit', ->
+            if msg then console.error msg
+            process.exit code or 0
+
+    ###*
+    Build full usage text for current command instance.
+    @returns {String} usage text
+    ###
+    usage: ->
+        res = []
+
+        if @_title then res.push @_fullTitle()
+
+        res.push('', 'Usage:')
+
+        if @_cmds.length then res.push(['', '',
+            Color('lred', @_fullName()),
+            Color('lblue', 'COMMAND'),
+            Color('lgreen', '[OPTIONS]'),
+            Color('lpurple', '[ARGS]')].join ' ')
+
+        if @_opts.length + @_args.length then res.push(['', '',
+            Color('lred', @_fullName()),
+            Color('lgreen', '[OPTIONS]'),
+            Color('lpurple', '[ARGS]')].join ' ')
+
+        res.push(
+            @_usages(@_cmds, 'Commands'),
+            @_usages(@_opts, 'Options'),
+            @_usages(@_args, 'Arguments'))
+
+        res.join '\n'
+
+    _usage: ->
+        Color('lblue', @_name) + ' : ' + @_title
+
+    _usages: (os, title) ->
+        unless os.length then return
+        res = ['', title + ':']
+        for o in os
+            res.push '  ' + o._usage()
+        res.join '\n'
+
+    _fullTitle: ->
+        (if @_cmd is this then '' else @_cmd._fullTitle() + '\n') + @_title
+
+    _fullName: ->
+        (if this._cmd is this then '' else @_cmd._fullName() + ' ') + PATH.basename(@_name)
+
+    _ejectOpt: (opts, opt) ->
+        if (pos = opts.indexOf(opt)) >= 0
+            if opts[pos]._arr
+                opts[pos]
+            else
+                opts.splice(pos, 1)[0]
+
+    _checkRequired: (opts, args) ->
+        if not (@_opts.filter (o) -> o._only and o._name of opts).length
+            all = @_opts.concat @_args
+            while i = all.shift()
+                if i._req and i._checkParsed opts, args
+                    return @reject i._requiredText()
+
+    _parseCmd: (argv, unparsed = []) ->
+        argv = argv.concat()
+        optSeen = false
+        while i = argv.shift()
+            if not i.indexOf '-'
+                optSeen = true
+            if not optSeen and /^\w[\w-_]*$/.test(i)
+                cmd = @_cmdsByName[i]
+
+                if not cmd and @_ext
+                    # construct package name to require
+                    if typeof @_ext is 'string'
+                        if ~@_ext.indexOf('%s')
+                            # use formatted string
+                            pkg = UTIL.format(@_ext, i)
+                        else
+                            # just append subcommand name to the prefix
+                            pkg = @_ext + i
+                    else if @_ext is true
+                        # use default scheme: <command>-<subcommand>-<subcommand> and so on
+                        pkg = i
+                        c = @
+                        loop
+                            pkg = c._name + '-' + pkg
+                            if c._cmd is c then break
+                            c = c._cmd
+
+                    try
+                        cmdDesc = require(pkg)
+                    catch e
+
+                    if cmdDesc
+                        if typeof cmdDesc == 'function'
+                            # set create subcommand, set its name and apply imported function
+                            @cmd()
+                                .name(i)
+                                .apply(cmdDesc)
+                                .end()
+                        else if typeof cmdDesc == 'object'
+                            # register subcommand
+                            @cmd(cmdDesc)
+                            # set command name
+                            cmdDesc.name(i)
+                        else
+                            throw new Error 'Error: Unsupported command declaration type, ' +
+                                'should be function or COA.Cmd() object'
+                        cmd = @_cmdsByName[i]
+                if cmd
+                    return cmd._parseCmd argv, unparsed
+
+            unparsed.push i
+
+        { cmd: @, argv: unparsed }
+
+    _parseOptsAndArgs: (argv) ->
+        opts = {}
+        args = {}
+
+        nonParsedOpts = @_opts.concat()
+        nonParsedArgs = @_args.concat()
+
+        while i = argv.shift()
+            # opt
+            if i isnt '--' and not i.indexOf '-'
+
+                if m = i.match /^(--\w[\w-_]*)=(.*)$/
+                    i = m[1]
+
+                    # suppress 'unknown argument' error for flag options with values
+                    if not @_optsByKey[i]._flag
+                        argv.unshift m[2]
+
+                if opt = @_ejectOpt nonParsedOpts, @_optsByKey[i]
+                    if Q.isRejected(res = opt._parse argv, opts)
+                        return res
+                else
+                    return @reject "Unknown option: #{ i }"
+
+            # arg
+            else
+                if i is '--'
+                    i = argv.splice(0)
+
+                i = if Array.isArray(i) then i else [i]
+
+                while a = i.shift()
+                    if arg = nonParsedArgs.shift()
+                        if arg._arr then nonParsedArgs.unshift arg
+                        if Q.isRejected(res = arg._parse a, args)
+                            return res
+                    else
+                        return @reject "Unknown argument: #{ a }"
+
+        # set defaults
+        {
+            opts: @_setDefaults(opts, nonParsedOpts),
+            args: @_setDefaults(args, nonParsedArgs)
+        }
+
+    _setDefaults: (params, desc) ->
+        for i in desc
+            if i._name not of params and '_def' of i
+                i._saveVal params, i._def
+        params
+
+    _processParams: (params, desc) ->
+        notExists = []
+        for i in desc
+            n = i._name
+            if n not of params
+                notExists.push i
+                continue
+
+            vals = params[n]
+            delete params[n]
+            if not Array.isArray vals
+                vals = [vals]
+
+            for v in vals
+                if Q.isRejected(res = i._saveVal(params, v))
+                    return res
+
+        # set defaults
+        @_setDefaults params, notExists
+
+    _parseArr: (argv) ->
+        Q.when @_parseCmd(argv), (p) ->
+            Q.when p.cmd._parseOptsAndArgs(p.argv), (r) ->
+                { cmd: p.cmd, opts: r.opts, args: r.args }
+
+    _do: (input) ->
+        Q.when input, (input) =>
+            cmd = input.cmd
+            [@_checkRequired].concat(cmd._act or []).reduce(
+                (res, act) ->
+                    Q.when res, (res) ->
+                        act.call(
+                            cmd
+                            input.opts
+                            input.args
+                            res)
+                undefined
+            )
+
+    ###*
+    Parse arguments from simple format like NodeJS process.argv
+    and run ahead current program, i.e. call process.exit when all actions done.
+    @param {Array} argv
+    @returns {COA.Cmd} this instance (for chainability)
+    ###
+    run: (argv = process.argv.slice(2)) ->
+        cb = (code) => (res) =>
+            if res
+                @_exit res.stack ? res.toString(), res.exitCode ? code
+            else
+                @_exit()
+        Q.when(@do(argv), cb(0), cb(1)).done()
+        @
+
+    ###*
+    Convenient function to run command from tests.
+    @param {Array} argv
+    @returns {Q.Promise}
+    ###
+    do: (argv) ->
+        @_do(@_parseArr argv || [])
+
+    ###*
+    Invoke specified (or current) command using provided
+    options and arguments.
+    @param {String|Array} cmds  subcommand to invoke (optional)
+    @param {Object} opts  command options (optional)
+    @param {Object} args  command arguments (optional)
+    @returns {Q.Promise}
+    ###
+    invoke: (cmds = [], opts = {}, args = {}) ->
+        if typeof cmds == 'string'
+            cmds = cmds.split(' ')
+
+        if arguments.length < 3
+            if not Array.isArray cmds
+                args = opts
+                opts = cmds
+                cmds = []
+
+        Q.when @_parseCmd(cmds), (p) =>
+            if p.argv.length
+                return @reject "Unknown command: " + cmds.join ' '
+
+            Q.all([@_processParams(opts, @_opts), @_processParams(args, @_args)])
+                .spread (opts, args) =>
+                    @_do({ cmd: p.cmd, opts: opts, args: args })
+                        # catch fails from .only() options
+                        .fail (res) =>
+                            if res and res.exitCode is 0
+                                res.toString()
+                            else
+                                @reject(res)
+
+    ###*
+    Return reject of actions results promise with error code.
+    Use in .act() for return with error.
+    @param {Object} reject reason
+        You can customize toString() method and exitCode property
+        of reason object.
+    @returns {Q.promise} rejected promise
+    ###
+    reject: (reason) -> Q.reject(reason)
+
+    ###*
+    Finish chain for current subcommand and return parent command instance.
+    @returns {COA.Cmd} parent command
+    ###
+    end: -> @_cmd
diff --git a/node_modules/coa/src/color.coffee b/node_modules/coa/src/color.coffee
new file mode 100644
index 00000000..f07a3a57
--- /dev/null
+++ b/node_modules/coa/src/color.coffee
@@ -0,0 +1,25 @@
+colors =
+    black: '30'
+    dgray: '1;30'
+    red: '31'
+    lred: '1;31'
+    green: '32'
+    lgreen: '1;32'
+    brown: '33'
+    yellow: '1;33'
+    blue: '34'
+    lblue: '1;34'
+    purple: '35'
+    lpurple: '1;35'
+    cyan: '36'
+    lcyan: '1;36'
+    lgray: '37'
+    white: '1;37'
+
+exports.Color = (c, str) ->
+    # Use \x1B instead of \033 because of CoffeeScript 1.3.x compilation error
+    [
+        '\x1B[', colors[c], 'm'
+        str
+        '\x1B[m'
+    ].join ''
diff --git a/node_modules/coa/src/completion.coffee b/node_modules/coa/src/completion.coffee
new file mode 100644
index 00000000..2c1e358d
--- /dev/null
+++ b/node_modules/coa/src/completion.coffee
@@ -0,0 +1,156 @@
+###*
+Most of the code adopted from the npm package shell completion code.
+See https://github.com/isaacs/npm/blob/master/lib/completion.js
+###
+
+Q = require 'q'
+escape = require('./shell').escape
+unescape = require('./shell').unescape
+
+module.exports = ->
+    @title('Shell completion')
+        .helpful()
+        .arg()
+            .name('raw')
+            .title('Completion words')
+            .arr()
+            .end()
+        .act (opts, args) ->
+            if process.platform == 'win32'
+                e = new Error 'shell completion not supported on windows'
+                e.code = 'ENOTSUP'
+                e.errno = require('constants').ENOTSUP
+                return @reject(e)
+
+            # if the COMP_* isn't in the env, then just dump the script
+            if !process.env.COMP_CWORD? or !process.env.COMP_LINE? or !process.env.COMP_POINT?
+                return dumpScript(@_cmd._name)
+
+            console.error 'COMP_LINE:  %s', process.env.COMP_LINE
+            console.error 'COMP_CWORD: %s', process.env.COMP_CWORD
+            console.error 'COMP_POINT: %s', process.env.COMP_POINT
+            console.error 'args: %j', args.raw
+
+            # completion opts
+            opts = getOpts args.raw
+
+            # cmd
+            { cmd, argv } = @_cmd._parseCmd opts.partialWords
+            Q.when complete(cmd, opts), (compls) ->
+                console.error 'filtered: %j', compls
+                console.log compls.map(escape).join('\n')
+
+
+dumpScript = (name) ->
+    fs = require 'fs'
+    path = require 'path'
+    defer = Q.defer()
+
+    fs.readFile path.resolve(__dirname, 'completion.sh'), 'utf8', (err, d) ->
+        if err then return defer.reject err
+        d = d.replace(/{{cmd}}/g, path.basename name).replace(/^\#\!.*?\n/, '')
+
+        onError = (err) ->
+            # Darwin is a real dick sometimes.
+            #
+            # This is necessary because the "source" or "." program in
+            # bash on OS X closes its file argument before reading
+            # from it, meaning that you get exactly 1 write, which will
+            # work most of the time, and will always raise an EPIPE.
+            #
+            # Really, one should not be tossing away EPIPE errors, or any
+            # errors, so casually. But, without this, `. <(cmd completion)`
+            # can never ever work on OS X.
+            if err.errno == require('constants').EPIPE
+                process.stdout.removeListener 'error', onError
+                defer.resolve()
+            else
+                defer.reject(err)
+
+        process.stdout.on 'error', onError
+        process.stdout.write d, -> defer.resolve()
+
+    defer.promise
+
+
+getOpts = (argv) ->
+    # get the partial line and partial word, if the point isn't at the end
+    # ie, tabbing at: cmd foo b|ar
+    line = process.env.COMP_LINE
+    w = +process.env.COMP_CWORD
+    point = +process.env.COMP_POINT
+    words = argv.map unescape
+    word = words[w]
+    partialLine = line.substr 0, point
+    partialWords = words.slice 0, w
+
+    # figure out where in that last word the point is
+    partialWord = argv[w] or ''
+    i = partialWord.length
+    while partialWord.substr(0, i) isnt partialLine.substr(-1 * i) and i > 0
+        i--
+    partialWord = unescape partialWord.substr 0, i
+    if partialWord then partialWords.push partialWord
+
+    {
+        line: line
+        w: w
+        point: point
+        words: words
+        word: word
+        partialLine: partialLine
+        partialWords: partialWords
+        partialWord: partialWord
+    }
+
+
+complete = (cmd, opts) ->
+    compls = []
+
+    # complete on cmds
+    if opts.partialWord.indexOf('-')
+        compls = Object.keys(cmd._cmdsByName)
+        # Complete on required opts without '-' in last partial word
+        # (if required not already specified)
+        #
+        # Commented out because of uselessness:
+        # -b, --block suggest results in '-' on cmd line;
+        # next completion suggest all options, because of '-'
+        #.concat Object.keys(cmd._optsByKey).filter (v) -> cmd._optsByKey[v]._req
+    else
+        # complete on opt values: --opt=| case
+        if m = opts.partialWord.match /^(--\w[\w-_]*)=(.*)$/
+            optWord = m[1]
+            optPrefix = optWord + '='
+        else
+            # complete on opts
+            # don't complete on opts in case of --opt=val completion
+            # TODO: don't complete on opts in case of unknown arg after commands
+            # TODO: complete only on opts with arr() or not already used
+            # TODO: complete only on full opts?
+            compls = Object.keys cmd._optsByKey
+
+    # complete on opt values: next arg case
+    if not (o = opts.partialWords[opts.w - 1]).indexOf '-'
+        optWord = o
+
+    # complete on opt values: completion
+    if optWord and opt = cmd._optsByKey[optWord]
+        if not opt._flag and opt._comp
+            compls = Q.join compls, Q.when opt._comp(opts), (c, o) ->
+                c.concat o.map (v) -> (optPrefix or '') + v
+
+    # TODO: complete on args values (context aware, custom completion?)
+
+    # custom completion on cmds
+    if cmd._comp
+        compls = Q.join compls, Q.when(cmd._comp(opts)), (c, o) ->
+            c.concat o
+
+    # TODO: context aware custom completion on cmds, opts and args
+    # (can depend on already entered values, especially options)
+
+    Q.when compls, (compls) ->
+        console.error 'partialWord: %s', opts.partialWord
+        console.error 'compls: %j', compls
+        compls.filter (c) -> c.indexOf(opts.partialWord) is 0
diff --git a/node_modules/coa/src/index.coffee b/node_modules/coa/src/index.coffee
new file mode 100644
index 00000000..ae594be3
--- /dev/null
+++ b/node_modules/coa/src/index.coffee
@@ -0,0 +1,5 @@
+exports.Cmd = require('./cmd').Cmd
+exports.Opt = require('./cmd').Opt
+exports.Arg = require('./cmd').Arg
+exports.shell = require('./shell')
+exports.require = require;
diff --git a/node_modules/coa/src/opt.coffee b/node_modules/coa/src/opt.coffee
new file mode 100644
index 00000000..466383df
--- /dev/null
+++ b/node_modules/coa/src/opt.coffee
@@ -0,0 +1,243 @@
+fs = require 'fs'
+Q = require 'q'
+Color = require('./color').Color
+Cmd = require('./cmd').Cmd
+
+###*
+Option
+
+Named entity. Options may have short and long keys for use from command line.
+@namespace
+@class Presents option
+###
+exports.Opt = class Opt
+
+    ###*
+    @constructs
+    @param {COA.Cmd} cmd parent command
+    ###
+    constructor: (@_cmd) -> @_cmd._opts.push @
+
+    ###*
+    Set a canonical option identifier to be used anywhere in the API.
+    @param {String} _name option name
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    name: (@_name) -> @
+
+    ###*
+    Set a long description for option to be used anywhere in text messages.
+    @param {String} _title option title
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    title: Cmd::title
+
+    ###*
+    Set a short key for option to be used with one hyphen from command line.
+    @param {String} _short
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    short: (@_short) -> @_cmd._optsByKey['-' + _short] = @
+
+    ###*
+    Set a short key for option to be used with double hyphens from command line.
+    @param {String} _long
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    long: (@_long) -> @_cmd._optsByKey['--' + _long] = @
+
+    ###*
+    Make an option boolean, i.e. option without value.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    flag: () ->
+        @_flag = true
+        @
+
+    ###*
+    Makes an option accepts multiple values.
+    Otherwise, the value will be used by the latter passed.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    arr: ->
+        @_arr = true
+        @
+
+    ###*
+    Makes an option required.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    req: ->
+        @_req = true
+        @
+
+    ###*
+    Makes an option to act as a command,
+    i.e. program will exit just after option action.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    only: ->
+        @_only = true
+        @
+
+    ###*
+    Set a validation (or value) function for option.
+    Value from command line passes through before becoming available from API.
+    Using for validation and convertion simple types to any values.
+    @param {Function} _val validating function,
+        invoked in the context of option instance
+        and has one parameter with value from command line
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    val: (@_val) -> @
+
+    ###*
+    Set a default value for option.
+    Default value passed through validation function as ordinary value.
+    @param {Object} _def
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    def: (@_def) -> @
+
+    ###*
+    Make option value inputting stream.
+    It's add useful validation and shortcut for STDIN.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    input: ->
+        # XXX: hack to workaround a bug in node 0.6.x,
+        # see https://github.com/joyent/node/issues/2130
+        process.stdin.pause();
+
+        @
+            .def(process.stdin)
+            .val (v) ->
+                if typeof v is 'string'
+                    if v is '-'
+                        process.stdin
+                    else
+                        s = fs.createReadStream v, { encoding: 'utf8' }
+                        s.pause()
+                        s
+                else v
+
+    ###*
+    Make option value outputing stream.
+    It's add useful validation and shortcut for STDOUT.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    output: ->
+        @
+            .def(process.stdout)
+            .val (v) ->
+                if typeof v is 'string'
+                    if v is '-'
+                        process.stdout
+                    else
+                        fs.createWriteStream v, { encoding: 'utf8' }
+                else v
+
+    ###*
+    Add action for current option command.
+    This action is performed if the current option
+    is present in parsed options (with any value).
+    @param {Function} act action function,
+        invoked in the context of command instance
+        and has the parameters:
+            - {Object} opts parsed options
+            - {Array} args parsed arguments
+            - {Object} res actions result accumulator
+        It can return rejected promise by Cmd.reject (in case of error)
+        or any other value treated as result.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    act: (act) ->
+        opt = @
+        name = @_name
+        @_cmd.act (opts) ->
+            if name of opts
+                res = act.apply @, arguments
+                if opt._only
+                    Q.when res, (res) =>
+                        @reject {
+                            toString: -> res.toString()
+                            exitCode: 0
+                        }
+                else
+                    res
+        @
+
+    ###*
+    Set custom additional completion for current option.
+    @param {Function} completion generation function,
+        invoked in the context of option instance.
+        Accepts parameters:
+            - {Object} opts completion options
+        It can return promise or any other value treated as result.
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    comp: Cmd::comp
+
+    _saveVal: (opts, val) ->
+        if @_val then val = @_val val
+        if @_arr
+            (opts[@_name] or= []).push val
+        else
+            opts[@_name] = val
+        val
+
+    _parse: (argv, opts) ->
+        @_saveVal(
+            opts,
+            if @_flag
+                true
+            else
+                argv.shift()
+        )
+
+    _checkParsed: (opts, args) -> not opts.hasOwnProperty @_name
+
+    _usage: ->
+        res = []
+        nameStr = @_name.toUpperCase()
+
+        if @_short
+            res.push '-', Color 'lgreen', @_short
+            unless @_flag then res.push ' ' + nameStr
+            res.push ', '
+
+        if @_long
+            res.push '--', Color 'green', @_long
+            unless @_flag then res.push '=' + nameStr
+
+        res.push ' : ', @_title
+
+        if @_req then res.push ' ', Color('lred', '(required)')
+
+        res.join ''
+
+    _requiredText: -> 'Missing required option:\n  ' + @_usage()
+
+    ###*
+    Return rejected promise with error code.
+    Use in .val() for return with error.
+    @param {Object} reject reason
+        You can customize toString() method and exitCode property
+        of reason object.
+    @returns {Q.promise} rejected promise
+    ###
+    reject: Cmd::reject
+
+    ###*
+    Finish chain for current option and return parent command instance.
+    @returns {COA.Cmd} parent command
+    ###
+    end: Cmd::end
+
+    ###*
+    Apply function with arguments in context of option instance.
+    @param {Function} fn
+    @param {Array} args
+    @returns {COA.Opt} this instance (for chainability)
+    ###
+    apply: Cmd::apply
diff --git a/node_modules/coa/src/shell.coffee b/node_modules/coa/src/shell.coffee
new file mode 100644
index 00000000..efad108d
--- /dev/null
+++ b/node_modules/coa/src/shell.coffee
@@ -0,0 +1,10 @@
+exports.unescape = (w) ->
+    w = if w.charAt(0) is '"'
+        w.replace(/^"|([^\\])"$/g, '$1')
+    else
+        w.replace(/\\ /g, ' ')
+    w.replace(/\\("|'|\$|`|\\)/g, '$1')
+
+exports.escape = (w) ->
+    w = w.replace(/(["'$`\\])/g,'\\$1')
+    if w.match(/\s+/) then '"' + w + '"' else w
diff --git a/node_modules/coa/test/coa.js b/node_modules/coa/test/coa.js
new file mode 100644
index 00000000..4277321a
--- /dev/null
+++ b/node_modules/coa/test/coa.js
@@ -0,0 +1,496 @@
+var assert = require('chai').assert,
+    COA = require('..');
+
+/**
+ * Mocha BDD interface.
+ */
+/** @name describe @function */
+/** @name it @function */
+/** @name before @function */
+/** @name after @function */
+/** @name beforeEach @function */
+/** @name afterEach @function */
+
+describe('Opt', function() {
+
+    describe('Unknown option', function() {
+
+        var cmd = COA.Cmd();
+
+        it('should fail', function() {
+            return cmd.do(['-a'])
+                .then(assert.fail, emptyFn);
+        });
+
+    });
+
+    describe('Short options', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('a')
+                .short('a')
+                .end()
+            .opt()
+                .name('b')
+                .short('b')
+                .end()
+            .act(function(opts) {
+                return opts;
+            });
+
+        it('should return passed values', function() {
+            return cmd.do(['-a', 'a', '-b', 'b'])
+                .then(function(res) {
+                    assert.deepEqual(res, { a: 'a', b: 'b' });
+                });
+        });
+
+    });
+
+    describe('Long options', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('long1')
+                .long('long1')
+                .end()
+            .opt()
+                .name('long2')
+                .long('long2')
+                .end()
+            .act(function(opts) {
+                return opts;
+            });
+
+        it('should return passed values', function() {
+            return cmd.do(['--long1', 'long value', '--long2=another long value'])
+                .then(function(res) {
+                    assert.deepEqual(res, { long1: 'long value', long2: 'another long value' });
+                });
+        });
+
+    });
+
+    describe('Array option', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('a')
+                .short('a')
+                .arr()
+                .end()
+            .act(function(opts) {
+                return opts;
+            });
+
+        it('should return array of passed values', function() {
+            return cmd.do(['-a', '1', '-a', '2'])
+                .then(function(res) {
+                    assert.deepEqual(res, { a: ['1', '2'] });
+                });
+        });
+
+    });
+
+    describe('Required option', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('a')
+                .short('a')
+                .req()
+                .end()
+            .act(function(opts) {
+                return opts;
+            });
+
+        it('should fail if not specified', function() {
+            return cmd.do()
+                .then(assert.fail, emptyFn);
+        });
+
+        it('should return passed value if specified', function() {
+            return cmd.do(['-a', 'test'])
+                .then(function(opts) {
+                    assert.equal(opts.a, 'test');
+                });
+        });
+
+    });
+
+    describe('Option with default value', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('a')
+                .short('a')
+                .def('aaa')
+                .end()
+            .act(function(opts) {
+                return opts;
+            });
+
+        it('should return default value if not specified', function() {
+            return cmd.do()
+                .then(function(opts) {
+                    assert.equal(opts.a, 'aaa');
+                });
+        });
+
+        it('should return passed value if specified', function() {
+            return cmd.do(['-a', 'test'])
+                .then(function(opts) {
+                    assert.equal(opts.a, 'test');
+                });
+        });
+
+    });
+
+    describe('Validated / transformed option', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('a')
+                .short('a')
+                .val(function(v) {
+                    if (v === 'invalid') return this.reject('fail');
+                    return { value: v };
+                })
+                .end()
+            .act(function(opts) {
+                return opts;
+            });
+
+        it('should fail if custom checks suppose to do so', function() {
+            return cmd.do(['-a', 'invalid'])
+                .then(assert.fail, emptyFn);
+        });
+
+        it('should return transformed value', function() {
+            return cmd.do(['-a', 'test'])
+                .then(function(opts) {
+                    assert.deepEqual(opts.a, { value: 'test' });
+                });
+        });
+
+    });
+
+    describe('Only option (--version case)', function() {
+
+        var ver = require('../package.json').version,
+            cmd = COA.Cmd()
+                .opt()
+                    .name('version')
+                    .long('version')
+                    .flag()
+                    .only()
+                    .act(function() {
+                        return ver;
+                    })
+                    .end()
+                .opt()
+                    .name('req')
+                    .short('r')
+                    .req()
+                    .end();
+
+        it('should process the only() option', function() {
+            return cmd.do(['--version'])
+                .then(assert.fail, function(res) {
+                    assert.equal(res, ver);
+                });
+        });
+
+    });
+
+    it('input()');
+    it('output()');
+
+});
+
+describe('Arg', function() {
+
+    describe('Unknown arg', function() {
+
+        var cmd = COA.Cmd();
+
+        it('should fail', function() {
+            return cmd.do(['test'])
+                .then(assert.fail, emptyFn);
+        });
+
+    });
+
+    describe('Unknown arg after known', function() {
+
+        var cmd = COA.Cmd()
+            .arg()
+                .name('a')
+                .end();
+
+        it('should fail', function() {
+            return cmd.do(['test', 'unknown'])
+                .then(assert.fail, emptyFn);
+        });
+
+    });
+
+    describe('Array arg', function() {
+
+        var cmd = COA.Cmd()
+            .arg()
+                .name('a')
+                .arr()
+                .end()
+            .act(function(opts, args) {
+                return args;
+            });
+
+        it('should return array of passed values', function() {
+            return cmd.do(['value 1', 'value 2'])
+                .then(function(args) {
+                    assert.deepEqual(args, { a: ['value 1', 'value 2'] });
+                });
+        });
+
+    });
+
+    describe('Required arg', function() {
+
+        var cmd = COA.Cmd()
+            .arg()
+                .name('a')
+                .req()
+                .end()
+            .act(function(opts, args) {
+                return args;
+            });
+
+        it('should fail if not specified', function() {
+            return cmd.do()
+                .then(assert.fail, emptyFn);
+        });
+
+        it('should return passed value if specified', function() {
+            return cmd.do(['value'])
+                .then(function(args) {
+                    assert.equal(args.a, 'value');
+                });
+        });
+
+    });
+
+    describe('Args after options', function() {
+
+        var cmd = COA.Cmd()
+            .opt()
+                .name('opt')
+                .long('opt')
+                .end()
+            .arg()
+                .name('arg1')
+                .end()
+            .arg()
+                .name('arg2')
+                .arr()
+                .end()
+            .act(function(opts, args) {
+                return { opts: opts, args: args };
+            });
+
+        it('should return passed values', function() {
+            return cmd.do(['--opt', 'value', 'value', 'value 1', 'value 2'])
+                .then(function(o) {
+                    assert.deepEqual(o, {
+                        opts: { opt: 'value' },
+                        args: {
+                            arg1: 'value',
+                            arg2: ['value 1', 'value 2']
+                        }
+                    });
+                });
+        });
+
+    });
+
+    describe('Raw args', function() {
+
+        var cmd = COA.Cmd()
+            .arg()
+                .name('raw')
+                .arr()
+                .end()
+            .act(function(opts, args) {
+                return args;
+            });
+
+        it('should return passed arg values', function() {
+            return cmd.do(['--', 'raw', 'arg', 'values'])
+                .then(function(args) {
+                    assert.deepEqual(args, { raw: ['raw', 'arg', 'values'] });
+                });
+        });
+
+    });
+
+});
+
+describe('Cmd', function() {
+
+    var doTest = function(o) {
+            assert.deepEqual(o, {
+                opts: { opt: 'value' },
+                args: {
+                    arg1: 'value',
+                    arg2: ['value 1', 'value 2']
+                }
+            });
+        },
+
+        invokeOpts = { opt: 'value' },
+        invokeArgs = {
+            arg1: 'value',
+            arg2:  ['value 1', 'value 2']
+        };
+
+    describe('Subcommand', function() {
+
+        var cmd = COA.Cmd()
+            .cmd()
+                .name('command')
+                .opt()
+                    .name('opt')
+                    .long('opt')
+                    .end()
+                .arg()
+                    .name('arg1')
+                    .end()
+                .arg()
+                    .name('arg2')
+                    .arr()
+                    .end()
+                .act(function(opts, args) {
+                    return { opts: opts, args: args };
+                })
+                .end();
+
+        describe('when specified on command line', function() {
+
+            it('should be invoked and accept passed opts and args', function() {
+                return cmd.do(['command', '--opt', 'value', 'value', 'value 1', 'value 2'])
+                    .then(doTest);
+            });
+
+        });
+
+        describe('when invoked using api', function() {
+
+            it('should be invoked and accept passed opts and args', function() {
+                return cmd.api.command(invokeOpts, invokeArgs)
+                    .then(doTest);
+            });
+
+        });
+
+        describe('when invoked using invoke()', function() {
+
+            it('should be invoked and accept passed opts and args', function() {
+                return cmd.invoke('command', invokeOpts, invokeArgs)
+                    .then(doTest);
+            });
+
+        });
+
+        describe('when unexisting command invoked using invoke()', function() {
+
+            it('should fail', function() {
+                return cmd.invoke('unexistent')
+                    .then(assert.fail, emptyFn);
+            });
+
+        });
+
+    });
+
+    describe('External subcommand', function() {
+
+        describe('default scheme: cmd.extendable()', function() {
+
+            describe('when described as a function', function() {
+                var cmd = COA.Cmd()
+                    .name('coa')
+                    .extendable();
+
+                it('should be invoked and accept passed opts and args', function() {
+                    return cmd.do(['test', '--opt', 'value', 'value', 'value 1', 'value 2'])
+                        .then(doTest);
+                });
+            });
+
+            describe('when described as an COA.Cmd() object', function() {
+                var cmd = COA.Cmd()
+                    .name('coa')
+                    .extendable();
+
+                it('should be invoked and accept passed opts and args', function() {
+                    return cmd.do(['test-obj', '--opt', 'value', 'value', 'value 1', 'value 2'])
+                        .then(doTest);
+                });
+            });
+
+            describe('2nd level subcommand', function() {
+                var cmd = COA.Cmd()
+                    .name('coa')
+                    .cmd()
+                    .name('test')
+                    .extendable()
+                    .end();
+
+                it('should be invoked and accept passed opts and args', function() {
+                    return cmd.do(['test', 'obj', '--opt', 'value', 'value', 'value 1', 'value 2'])
+                        .then(doTest);
+                });
+            });
+
+        });
+
+        describe("common prefix: cmd.extendable('coa-')", function() {
+
+            describe('when described as a function', function() {
+                var cmd = COA.Cmd()
+                    .name('coa')
+                    .extendable('coa-');
+
+                it('should be invoked and accept passed opts and args', function() {
+                    return cmd.do(['test', '--opt', 'value', 'value', 'value 1', 'value 2'])
+                        .then(doTest);
+                });
+            });
+
+        });
+
+        describe("format string: cmd.extendable('coa-%s')", function() {
+
+            describe('when described as a function', function() {
+                var cmd = COA.Cmd()
+                    .name('coa')
+                    .extendable('coa-%s');
+
+                it('should be invoked and accept passed opts and args', function() {
+                    return cmd.do(['test', '--opt', 'value', 'value', 'value 1', 'value 2'])
+                        .then(doTest);
+                });
+            });
+
+        });
+
+    });
+
+    it('helpful(), name(), title()');
+
+});
+
+function emptyFn() {
+    // empty function
+}
diff --git a/node_modules/coa/test/mocha.opts b/node_modules/coa/test/mocha.opts
new file mode 100644
index 00000000..78e17754
--- /dev/null
+++ b/node_modules/coa/test/mocha.opts
@@ -0,0 +1,2 @@
+--reporter spec
+--timeout 20
diff --git a/node_modules/coa/test/shell-test.js b/node_modules/coa/test/shell-test.js
new file mode 100644
index 00000000..7291a53d
--- /dev/null
+++ b/node_modules/coa/test/shell-test.js
@@ -0,0 +1,60 @@
+var assert = require('chai').assert,
+    shell = require('..').shell;
+
+/**
+ * Mocha BDD interface.
+ */
+/** @name describe @function */
+/** @name it @function */
+/** @name before @function */
+/** @name after @function */
+/** @name beforeEach @function */
+/** @name afterEach @function */
+
+describe('shell', function() {
+
+    describe('escape()', function() {
+
+        var escape = shell.escape;
+
+        it('Should wrap values with spaces in double quotes', function() {
+            assert.equal(escape('asd abc'), '"asd abc"');
+        });
+
+        it('Should escape double quote "', function() {
+            assert.equal(escape('"asd'), '\\"asd');
+        });
+
+        it("Should escape single quote '", function() {
+            assert.equal(escape("'asd"), "\\'asd");
+        });
+
+        it('Should escape backslash \\', function() {
+            assert.equal(escape('\\asd'), '\\\\asd');
+        });
+
+        it('Should escape dollar $', function() {
+            assert.equal(escape('$asd'), '\\$asd');
+        });
+
+        it('Should escape backtick `', function() {
+            assert.equal(escape('`asd'), '\\`asd');
+        });
+
+    });
+
+    describe('unescape()', function() {
+
+        var unescape = shell.unescape;
+
+        it('Should strip double quotes at the both ends', function() {
+            assert.equal(unescape('"asd"'), 'asd');
+        });
+
+        it('Should not strip escaped double quotes at the both ends', function() {
+            assert.equal(unescape('\\"asd\\"'), '"asd"');
+        });
+
+    });
+
+});
diff --git a/node_modules/coa/tests/api-h.js b/node_modules/coa/tests/api-h.js
new file mode 100644
index 00000000..c343fa06
--- /dev/null
+++ b/node_modules/coa/tests/api-h.js
@@ -0,0 +1,9 @@
+require('..').Cmd()
+    .name('bla')
+    .title('Bla bla bla')
+    .helpful()
+    .invoke({ help: true })
+    .then(function(res) {
+        console.log(res);
+    })
+    .done(); // Q.done()
diff --git a/node_modules/coa/tests/h.js b/node_modules/coa/tests/h.js
new file mode 100644
index 00000000..b8e2c768
--- /dev/null
+++ b/node_modules/coa/tests/h.js
@@ -0,0 +1,6 @@
+var argv = process.argv.slice(2);
+require('..').Cmd()
+    .name('bla')
+    .title('Bla bla bla')
+    .helpful()
+    .run(argv.length? argv : ['-h']);