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diff --git a/src/node_modules/js-string-escape/CHANGELOG.md b/src/node_modules/js-string-escape/CHANGELOG.md
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--- /dev/null
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@@ -0,0 +1,13 @@
+# master
+
+# 1.0.1
+
+* Exclude unused files from npm distribution
+
+# 1.0.0
+
+* No change; version bumped to indicate that this package is considered stable
+
+# 0.0.1
+
+* Initial release
diff --git a/src/node_modules/js-string-escape/LICENSE b/src/node_modules/js-string-escape/LICENSE
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+++ b/src/node_modules/js-string-escape/LICENSE
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+The MIT License (MIT)
+
+Copyright (c) 2013 Jo Liss
+
+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/src/node_modules/js-string-escape/README.md b/src/node_modules/js-string-escape/README.md
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+# js-string-escape
+
+[![Build Status](https://travis-ci.org/joliss/js-string-escape.png?branch=master)](https://travis-ci.org/joliss/js-string-escape)
+
+Escape any string to be a valid JavaScript string literal between double
+quotes or single quotes.
+
+## Installation
+
+```
+npm install js-string-escape
+```
+
+## Example
+
+If you need to generate JavaScript output, this library will help you safely
+put arbitrary data in JavaScript strings:
+
+```js
+jsStringEscape = require('js-string-escape')
+
+console.log('"' + jsStringEscape('Quotes (\", \'), newlines (\n), etc.') + '"')
+// => "Quotes (\", \'), newlines (\n), etc."
+```
+
+In other words, given any string `s`, the following invariants hold:
+
+```js
+eval('"' + jsStringEscape(s) + '"') === s
+eval("'" + jsStringEscape(s) + "'") === s
+```
+
+These `eval` expressions are safe with untrusted strings `s`.
+
+Non-strings will be cast to strings.
+
+## Compliance
+
+This library has been checked against [ECMAScript
+5.1](http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4) and tested
+against all Unicode code points.
+
+Note that the returned string is not necessarily valid JSON, since JSON
+disallows control characters, and `\'` is illegal in JSON.
diff --git a/src/node_modules/js-string-escape/index.js b/src/node_modules/js-string-escape/index.js
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+module.exports = function (string) {
+  return ('' + string).replace(/["'\\\n\r\u2028\u2029]/g, function (character) {
+    // Escape all characters not included in SingleStringCharacters and
+    // DoubleStringCharacters on
+    // http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4
+    switch (character) {
+      case '"':
+      case "'":
+      case '\\':
+        return '\\' + character
+      // Four possible LineTerminator characters need to be escaped:
+      case '\n':
+        return '\\n'
+      case '\r':
+        return '\\r'
+      case '\u2028':
+        return '\\u2028'
+      case '\u2029':
+        return '\\u2029'
+    }
+  })
+}
diff --git a/src/node_modules/js-string-escape/package.json b/src/node_modules/js-string-escape/package.json
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+++ b/src/node_modules/js-string-escape/package.json
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+{
+  "name": "js-string-escape",
+  "version": "1.0.1",
+  "description": "Escape strings for use as JavaScript string literals",
+  "main": "index.js",
+  "scripts": {
+    "test": "tap test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/joliss/js-string-escape"
+  },
+  "keywords": [
+    "string",
+    "escape",
+    "backslash",
+    "javascript",
+    "ecmascript"
+  ],
+  "author": "Jo Liss <joliss42@gmail.com>",
+  "contributors": [
+    {
+      "name": "Mathias Bynens",
+      "url": "http://mathiasbynens.be/"
+    }
+  ],
+  "license": "MIT",
+  "devDependencies" : {
+    "tap": "~> 0.4.2",
+    "punycode": "~> 1.2.1"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "files": [
+    "index.js"
+  ]
+}