switch to vuepress

15 files changed, 1056 insertions, 0 deletions

diff --git a/node_modules/async-limiter/.travis.yml b/node_modules/async-limiter/.travis.yml
new file mode 100644
index 00000000..6cf4a7ad
--- /dev/null
+++ b/node_modules/async-limiter/.travis.yml
@@ -0,0 +1,7 @@
+language: node_js
+node_js:
+  - "6"
+  - "node"
+script: npm run travis
+cache:
+  yarn: true
diff --git a/node_modules/async-limiter/LICENSE b/node_modules/async-limiter/LICENSE
new file mode 100644
index 00000000..9c91fb26
--- /dev/null
+++ b/node_modules/async-limiter/LICENSE
@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright (c) 2017 Samuel Reed <samuel.trace.reed@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/async-limiter/coverage/coverage.json b/node_modules/async-limiter/coverage/coverage.json
new file mode 100644
index 00000000..5b4a3584
--- /dev/null
+++ b/node_modules/async-limiter/coverage/coverage.json
@@ -0,0 +1 @@
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diff --git a/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.html b/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.html
new file mode 100644
index 00000000..198882b4
--- /dev/null
+++ b/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.html
@@ -0,0 +1,73 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for async-throttle/</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="../prettify.css">
+    <link rel="stylesheet" href="../base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">async-throttle/</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">92.86% <small>(13 / 14)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(7 / 7)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"><a href="../index.html">All files</a> &#187; async-throttle/</div>
+</div>
+<div class="body">
+<div class="coverage-summary">
+<table>
+<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"><span class="cover-fill cover-full" style="width: 100px;"></span><span class="cover-empty" style="width:0px;"></span></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="37" class="abs high">(37&nbsp;/&nbsp;37)</td>
+	<td data-value="92.86" class="pct high">92.86%</td>
+	<td data-value="14" class="abs high">(13&nbsp;/&nbsp;14)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="7" class="abs high">(7&nbsp;/&nbsp;7)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="37" class="abs high">(37&nbsp;/&nbsp;37)</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Sep 11 2017 11:14:14 GMT-0500 (CDT)</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/async-limiter/coverage/lcov-report/async-throttle/index.js.html b/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.js.html
new file mode 100644
index 00000000..adc030fd
--- /dev/null
+++ b/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.js.html
@@ -0,0 +1,246 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for async-throttle/index.js</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="../prettify.css">
+    <link rel="stylesheet" href="../base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">async-throttle/index.js</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">92.86% <small>(13 / 14)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(7 / 7)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"><a href="../index.html">All files</a> &#187; <a href="index.html">async-throttle/</a> &#187; index.js</div>
+</div>
+<div class="body">
+<pre><table class="coverage">
+<tr><td class="line-count">1
+2
+3
+4
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+68</td><td class="line-coverage"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-yes">7</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
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+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</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">1</span>
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+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</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">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">19</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">1</span>
+<span class="cline-any cline-yes">45</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">39</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">39</span>
+<span class="cline-any cline-yes">18</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</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">1</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</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">1</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+function Queue(options) {
+  if (!(this instanceof Queue)) {
+    return new Queue(options);
+  }
+&nbsp;
+  options = options || {};
+  this.concurrency = options.concurrency || Infinity;
+  this.pending = 0;
+  this.jobs = [];
+  this.cbs = [];
+  this._done = done.bind(this);
+}
+&nbsp;
+var arrayAddMethods = [
+  'push',
+  'unshift',
+  'splice'
+];
+&nbsp;
+arrayAddMethods.forEach(function(method) {
+  Queue.prototype[method] = function() {
+    var methodResult = Array.prototype[method].apply(this.jobs, arguments);
+    this._run();
+    return methodResult;
+  };
+});
+&nbsp;
+Object.defineProperty(Queue.prototype, 'length', {
+  get: function() {
+    return this.pending + this.jobs.length;
+  }
+});
+&nbsp;
+Queue.prototype._run = function() {
+  if (this.pending === this.concurrency) {
+    return;
+  }
+  if (this.jobs.length) {
+    var job = this.jobs.shift();
+    this.pending++;
+    job(this._done);
+    this._run();
+  }
+&nbsp;
+  if (this.pending === 0) {
+    while (this.cbs.length !== 0) {
+      var cb = this.cbs.pop();
+      process.nextTick(cb);
+    }
+  }
+};
+&nbsp;
+Queue.prototype.onDone = function(cb) {
+  <span class="missing-if-branch" title="else path not taken" >E</span>if (typeof cb === 'function') {
+    this.cbs.push(cb);
+    this._run();
+  }
+};
+&nbsp;
+function done() {
+  this.pending--;
+  this._run();
+}
+&nbsp;
+module.exports = Queue;
+&nbsp;</pre></td></tr>
+</table></pre>
+
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Sep 11 2017 11:14:14 GMT-0500 (CDT)</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
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diff --git a/node_modules/async-limiter/coverage/lcov-report/sort-arrow-sprite.png b/node_modules/async-limiter/coverage/lcov-report/sort-arrow-sprite.png
new file mode 100644
index 00000000..03f704a6
--- /dev/null
+++ b/node_modules/async-limiter/coverage/lcov-report/sort-arrow-sprite.png
diff --git a/node_modules/async-limiter/coverage/lcov-report/sorter.js b/node_modules/async-limiter/coverage/lcov-report/sorter.js
new file mode 100644
index 00000000..6afb736c
--- /dev/null
+++ b/node_modules/async-limiter/coverage/lcov-report/sorter.js
@@ -0,0 +1,156 @@
+var addSorting = (function () {
+    "use strict";
+    var cols,
+        currentSort = {
+            index: 0,
+            desc: false
+        };
+
+    // returns the summary table element
+    function getTable() { return document.querySelector('.coverage-summary table'); }
+    // 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) {
+                el = getNthColumn(i).querySelector('.sorter');
+                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/async-limiter/coverage/lcov.info b/node_modules/async-limiter/coverage/lcov.info
new file mode 100644
index 00000000..fbf36aab
--- /dev/null
+++ b/node_modules/async-limiter/coverage/lcov.info
@@ -0,0 +1,74 @@
+TN:
+SF:/Users/samuelreed/git/forks/async-throttle/index.js
+FN:3,Queue
+FN:22,(anonymous_2)
+FN:23,(anonymous_3)
+FN:31,(anonymous_4)
+FN:36,(anonymous_5)
+FN:55,(anonymous_6)
+FN:62,done
+FNF:7
+FNH:7
+FNDA:7,Queue
+FNDA:3,(anonymous_2)
+FNDA:13,(anonymous_3)
+FNDA:19,(anonymous_4)
+FNDA:45,(anonymous_5)
+FNDA:6,(anonymous_6)
+FNDA:13,done
+DA:3,1
+DA:4,7
+DA:5,1
+DA:8,6
+DA:9,6
+DA:10,6
+DA:11,6
+DA:12,6
+DA:13,6
+DA:16,1
+DA:22,1
+DA:23,3
+DA:24,13
+DA:25,13
+DA:26,13
+DA:30,1
+DA:32,19
+DA:36,1
+DA:37,45
+DA:38,6
+DA:40,39
+DA:41,13
+DA:42,13
+DA:43,13
+DA:44,13
+DA:47,39
+DA:48,18
+DA:49,6
+DA:50,6
+DA:55,1
+DA:56,6
+DA:57,6
+DA:58,6
+DA:62,1
+DA:63,13
+DA:64,13
+DA:67,1
+LF:37
+LH:37
+BRDA:4,1,0,1
+BRDA:4,1,1,6
+BRDA:8,2,0,6
+BRDA:8,2,1,5
+BRDA:9,3,0,6
+BRDA:9,3,1,5
+BRDA:37,4,0,6
+BRDA:37,4,1,39
+BRDA:40,5,0,13
+BRDA:40,5,1,26
+BRDA:47,6,0,18
+BRDA:47,6,1,21
+BRDA:56,7,0,6
+BRDA:56,7,1,0
+BRF:14
+BRH:13
+end_of_record
diff --git a/node_modules/async-limiter/index.js b/node_modules/async-limiter/index.js
new file mode 100644
index 00000000..c9bd2f97
--- /dev/null
+++ b/node_modules/async-limiter/index.js
@@ -0,0 +1,67 @@
+'use strict';
+
+function Queue(options) {
+  if (!(this instanceof Queue)) {
+    return new Queue(options);
+  }
+
+  options = options || {};
+  this.concurrency = options.concurrency || Infinity;
+  this.pending = 0;
+  this.jobs = [];
+  this.cbs = [];
+  this._done = done.bind(this);
+}
+
+var arrayAddMethods = [
+  'push',
+  'unshift',
+  'splice'
+];
+
+arrayAddMethods.forEach(function(method) {
+  Queue.prototype[method] = function() {
+    var methodResult = Array.prototype[method].apply(this.jobs, arguments);
+    this._run();
+    return methodResult;
+  };
+});
+
+Object.defineProperty(Queue.prototype, 'length', {
+  get: function() {
+    return this.pending + this.jobs.length;
+  }
+});
+
+Queue.prototype._run = function() {
+  if (this.pending === this.concurrency) {
+    return;
+  }
+  if (this.jobs.length) {
+    var job = this.jobs.shift();
+    this.pending++;
+    job(this._done);
+    this._run();
+  }
+
+  if (this.pending === 0) {
+    while (this.cbs.length !== 0) {
+      var cb = this.cbs.pop();
+      process.nextTick(cb);
+    }
+  }
+};
+
+Queue.prototype.onDone = function(cb) {
+  if (typeof cb === 'function') {
+    this.cbs.push(cb);
+    this._run();
+  }
+};
+
+function done() {
+  this.pending--;
+  this._run();
+}
+
+module.exports = Queue;
diff --git a/node_modules/async-limiter/package.json b/node_modules/async-limiter/package.json
new file mode 100644
index 00000000..fa36061c
--- /dev/null
+++ b/node_modules/async-limiter/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "async-limiter",
+  "version": "1.0.0",
+  "description": "asynchronous function queue with adjustable concurrency",
+  "keywords": [
+    "throttle",
+    "async",
+    "limiter",
+    "asynchronous",
+    "job",
+    "task",
+    "concurrency",
+    "concurrent"
+  ],
+  "dependencies": {},
+  "devDependencies": {
+    "coveralls": "^2.11.2",
+    "eslint": "^4.6.1",
+    "eslint-plugin-mocha": "^4.11.0",
+    "intelli-espower-loader": "^1.0.1",
+    "istanbul": "^0.3.2",
+    "mocha": "^3.5.2",
+    "power-assert": "^1.4.4"
+  },
+  "scripts": {
+    "test": "mocha --R intelli-espower-loader test/",
+    "travis": "npm run lint && npm run coverage",
+    "coverage": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | coveralls",
+    "example": "node example",
+    "lint": "eslint ."
+  },
+  "repository": "https://github.com/strml/async-limiter.git",
+  "author": "Samuel Reed <samuel.trace.reed@gmail.com",
+  "license": "MIT"
+}
diff --git a/node_modules/async-limiter/readme.md b/node_modules/async-limiter/readme.md
new file mode 100644
index 00000000..dcf4932f
--- /dev/null
+++ b/node_modules/async-limiter/readme.md
@@ -0,0 +1,132 @@
+# Async-Limiter
+
+A module for limiting concurrent asynchronous actions in flight. Forked from [queue](https://github.com/jessetane/queue).
+
+[![npm](http://img.shields.io/npm/v/async-limiter.svg?style=flat-square)](http://www.npmjs.org/async-limiter)
+[![tests](https://img.shields.io/travis/STRML/async-limiter.svg?style=flat-square&branch=master)](https://travis-ci.org/STRML/async-limiter)
+[![coverage](https://img.shields.io/coveralls/STRML/async-limiter.svg?style=flat-square&branch=master)](https://coveralls.io/r/STRML/async-limiter)
+
+This module exports a class `Limiter` that implements some of the `Array` API.
+Pass async functions (ones that accept a callback or return a promise) to an instance's additive array methods.
+
+## Motivation
+
+Certain functions, like `zlib`, have [undesirable behavior](https://github.com/nodejs/node/issues/8871#issuecomment-250915913) when
+run at infinite concurrency.
+
+In this case, it is actually faster, and takes far less memory, to limit concurrency.
+
+This module should do the absolute minimum work necessary to queue up functions. PRs are welcome that would
+make this module faster or lighter, but new functionality is not desired.
+
+Style should confirm to nodejs/node style.
+
+## Example
+
+``` javascript
+var Limiter = require('async-limiter')
+
+var t = new Limiter({concurrency: 2});
+var results = []
+
+// add jobs using the familiar Array API
+t.push(function (cb) {
+  results.push('two')
+  cb()
+})
+
+t.push(
+  function (cb) {
+    results.push('four')
+    cb()
+  },
+  function (cb) {
+    results.push('five')
+    cb()
+  }
+)
+
+t.unshift(function (cb) {
+  results.push('one')
+  cb()
+})
+
+t.splice(2, 0, function (cb) {
+  results.push('three')
+  cb()
+})
+
+// Jobs run automatically. If you want a callback when all are done,
+// call 'onDone()'.
+t.onDone(function () {
+  console.log('all done:', results)
+})
+```
+
+## Zlib Example
+
+```js
+const zlib = require('zlib');
+const Limiter = require('async-limiter');
+
+const message = {some: "data"};
+const payload = new Buffer(JSON.stringify(message));
+
+// Try with different concurrency values to see how this actually
+// slows significantly with higher concurrency!
+//
+// 5:        1398.607ms
+// 10:       1375.668ms
+// Infinity: 4423.300ms
+//
+const t = new Limiter({concurrency: 5});
+function deflate(payload, cb) {
+  t.push(function(done) {
+    zlib.deflate(payload, function(err, buffer) {
+      done();
+      cb(err, buffer);
+    });
+  });
+}
+
+console.time('deflate');
+for(let i = 0; i < 30000; ++i) {
+  deflate(payload, function (err, buffer) {});
+}
+q.onDone(function() {
+  console.timeEnd('deflate');
+});
+```
+
+## Install
+
+`npm install async-limiter`
+
+## Test
+
+`npm test`
+
+## API
+
+### `var t = new Limiter([opts])`
+Constructor. `opts` may contain inital values for:
+* `q.concurrency`
+
+## Instance methods
+
+### `q.onDone(fn)`
+`fn` will be called once and only once, when the queue is empty.
+
+## Instance methods mixed in from `Array`
+Mozilla has docs on how these methods work [here](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array).
+### `q.push(element1, ..., elementN)`
+### `q.unshift(element1, ..., elementN)`
+### `q.splice(index , howMany[, element1[, ...[, elementN]]])`
+
+## Properties
+### `q.concurrency`
+Max number of jobs the queue should process concurrently, defaults to `Infinity`.
+
+### `q.length`
+Jobs pending + jobs to process (readonly).
+