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diff --git a/node_modules/stringify-object/LICENSE b/node_modules/stringify-object/LICENSE
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--- /dev/null
+++ b/node_modules/stringify-object/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2015, Yeoman team
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/stringify-object/index.js b/node_modules/stringify-object/index.js
new file mode 100644
index 00000000..beed5e3a
--- /dev/null
+++ b/node_modules/stringify-object/index.js
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+'use strict';
+const isRegexp = require('is-regexp');
+const isObj = require('is-obj');
+const getOwnEnumPropSymbols = require('get-own-enumerable-property-symbols').default;
+
+module.exports = (val, opts, pad) => {
+	const seen = [];
+
+	return (function stringify(val, opts, pad) {
+		opts = opts || {};
+		opts.indent = opts.indent || '\t';
+		pad = pad || '';
+
+		let tokens;
+
+		if (opts.inlineCharacterLimit === undefined) {
+			tokens = {
+				newLine: '\n',
+				newLineOrSpace: '\n',
+				pad,
+				indent: pad + opts.indent
+			};
+		} else {
+			tokens = {
+				newLine: '@@__STRINGIFY_OBJECT_NEW_LINE__@@',
+				newLineOrSpace: '@@__STRINGIFY_OBJECT_NEW_LINE_OR_SPACE__@@',
+				pad: '@@__STRINGIFY_OBJECT_PAD__@@',
+				indent: '@@__STRINGIFY_OBJECT_INDENT__@@'
+			};
+		}
+
+		const expandWhiteSpace = string => {
+			if (opts.inlineCharacterLimit === undefined) {
+				return string;
+			}
+
+			const oneLined = string
+				.replace(new RegExp(tokens.newLine, 'g'), '')
+				.replace(new RegExp(tokens.newLineOrSpace, 'g'), ' ')
+				.replace(new RegExp(tokens.pad + '|' + tokens.indent, 'g'), '');
+
+			if (oneLined.length <= opts.inlineCharacterLimit) {
+				return oneLined;
+			}
+
+			return string
+				.replace(new RegExp(tokens.newLine + '|' + tokens.newLineOrSpace, 'g'), '\n')
+				.replace(new RegExp(tokens.pad, 'g'), pad)
+				.replace(new RegExp(tokens.indent, 'g'), pad + opts.indent);
+		};
+
+		if (seen.indexOf(val) !== -1) {
+			return '"[Circular]"';
+		}
+
+		if (val === null ||
+			val === undefined ||
+			typeof val === 'number' ||
+			typeof val === 'boolean' ||
+			typeof val === 'function' ||
+			typeof val === 'symbol' ||
+			isRegexp(val)) {
+			return String(val);
+		}
+
+		if (val instanceof Date) {
+			return `new Date('${val.toISOString()}')`;
+		}
+
+		if (Array.isArray(val)) {
+			if (val.length === 0) {
+				return '[]';
+			}
+
+			seen.push(val);
+
+			const ret = '[' + tokens.newLine + val.map((el, i) => {
+				const eol = val.length - 1 === i ? tokens.newLine : ',' + tokens.newLineOrSpace;
+				let value = stringify(el, opts, pad + opts.indent);
+				if (opts.transform) {
+					value = opts.transform(val, i, value);
+				}
+				return tokens.indent + value + eol;
+			}).join('') + tokens.pad + ']';
+
+			seen.pop();
+
+			return expandWhiteSpace(ret);
+		}
+
+		if (isObj(val)) {
+			let objKeys = Object.keys(val).concat(getOwnEnumPropSymbols(val));
+
+			if (opts.filter) {
+				objKeys = objKeys.filter(el => opts.filter(val, el));
+			}
+
+			if (objKeys.length === 0) {
+				return '{}';
+			}
+
+			seen.push(val);
+
+			const ret = '{' + tokens.newLine + objKeys.map((el, i) => {
+				const eol = objKeys.length - 1 === i ? tokens.newLine : ',' + tokens.newLineOrSpace;
+				const isSymbol = typeof el === 'symbol';
+				const isClassic = !isSymbol && /^[a-z$_][a-z$_0-9]*$/i.test(el);
+				const key = isSymbol || isClassic ? el : stringify(el, opts);
+				let value = stringify(val[el], opts, pad + opts.indent);
+				if (opts.transform) {
+					value = opts.transform(val, el, value);
+				}
+				return tokens.indent + String(key) + ': ' + value + eol;
+			}).join('') + tokens.pad + '}';
+
+			seen.pop();
+
+			return expandWhiteSpace(ret);
+		}
+
+		val = String(val).replace(/[\r\n]/g, x => x === '\n' ? '\\n' : '\\r');
+
+		if (opts.singleQuotes === false) {
+			val = val.replace(/"/g, '\\"');
+			return `"${val}"`;
+		}
+
+		val = val.replace(/\\?'/g, '\\\'');
+		return `'${val}'`;
+	})(val, opts, pad);
+};
diff --git a/node_modules/stringify-object/package.json b/node_modules/stringify-object/package.json
new file mode 100644
index 00000000..74d638c0
--- /dev/null
+++ b/node_modules/stringify-object/package.json
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+{
+	"name": "stringify-object",
+	"version": "3.3.0",
+	"description": "Stringify an object/array like JSON.stringify just without all the double-quotes",
+	"license": "BSD-2-Clause",
+	"repository": "yeoman/stringify-object",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=4"
+	},
+	"scripts": {
+		"test": "xo && ava"
+	},
+	"files": [
+		"index.js"
+	],
+	"keywords": [
+		"object",
+		"stringify",
+		"pretty",
+		"print",
+		"dump",
+		"format",
+		"type",
+		"json"
+	],
+	"dependencies": {
+		"get-own-enumerable-property-symbols": "^3.0.0",
+		"is-obj": "^1.0.1",
+		"is-regexp": "^1.0.0"
+	},
+	"devDependencies": {
+		"ava": "*",
+		"xo": "*"
+	}
+}
diff --git a/node_modules/stringify-object/readme.md b/node_modules/stringify-object/readme.md
new file mode 100644
index 00000000..d4d6c3d7
--- /dev/null
+++ b/node_modules/stringify-object/readme.md
@@ -0,0 +1,155 @@
+# stringify-object [![Build Status](https://secure.travis-ci.org/yeoman/stringify-object.svg?branch=master)](http://travis-ci.org/yeoman/stringify-object)
+
+> Stringify an object/array like JSON.stringify just without all the double-quotes
+
+Useful for when you want to get the string representation of an object in a formatted way.
+
+It also handles circular references and lets you specify quote type.
+
+
+## Install
+
+```
+$ npm install stringify-object
+```
+
+
+## Usage
+
+```js
+const stringifyObject = require('stringify-object');
+
+const obj = {
+	foo: 'bar',
+	'arr': [1, 2, 3],
+	nested: { hello: "world" }
+};
+
+const pretty = stringifyObject(obj, {
+	indent: '  ',
+	singleQuotes: false
+});
+
+console.log(pretty);
+/*
+{
+	foo: "bar",
+	arr: [
+		1,
+		2,
+		3
+	],
+	nested: {
+		hello: "world"
+	}
+}
+*/
+```
+
+
+## API
+
+### stringifyObject(input, [options])
+
+Circular references will be replaced with `"[Circular]"`.
+
+#### input
+
+Type: `Object` `Array`
+
+#### options
+
+##### indent
+
+Type: `string`<br>
+Default: `\t`
+
+Preferred indentation.
+
+##### singleQuotes
+
+Type: `boolean`<br>
+Default: `true`
+
+Set to false to get double-quoted strings.
+
+##### filter(obj, prop)
+
+Type: `Function`
+
+Expected to return a `boolean` of whether to include the property `prop` of the object `obj` in the output.
+
+##### transform(obj, prop, originalResult)
+
+Type: `Function`<br>
+Default: `undefined`
+
+Expected to return a `string` that transforms the string that resulted from stringifying `obj[prop]`. This can be used to detect special types of objects that need to be stringified in a particular way. The `transform` function might return an alternate string in this case, otherwise returning the `originalResult`.
+
+Here's an example that uses the `transform` option to mask fields named "password":
+
+```js
+const obj = {
+	user: 'becky',
+	password: 'secret'
+}
+
+const pretty = stringifyObject(obj, {
+	transform: (obj, prop, originalResult) => {
+		if (prop === 'password') {
+			return originalResult.replace(/\w/g, '*');
+		} else {
+			return originalResult;
+		}
+	}
+});
+
+console.log(pretty);
+/*
+{
+	user: 'becky',
+	password: '******'
+}
+*/
+```
+
+
+##### inlineCharacterLimit
+
+Type: `number`
+
+When set, will inline values up to `inlineCharacterLimit` length for the sake of more terse output.
+
+For example, given the example at the top of the README:
+
+```js
+const obj = {
+	foo: 'bar',
+	'arr': [1, 2, 3],
+	nested: { hello: "world" }
+};
+
+const pretty = stringifyObject(obj, {
+	indent: '  ',
+	singleQuotes: false,
+	inlineCharacterLimit: 12
+});
+
+console.log(pretty);
+/*
+{
+	foo: "bar",
+	arr: [1, 2, 3],
+	nested: {
+		hello: "world"
+	}
+}
+*/
+```
+
+As you can see, `arr` was printed as a one-liner because its string was shorter than 12 characters.
+
+
+## License
+
+BSD-2-Clause © Yeoman team