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diff --git a/node_modules/is-valid-glob/LICENSE b/node_modules/is-valid-glob/LICENSE
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+++ b/node_modules/is-valid-glob/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015, Jon Schlinkert.
+
+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/is-valid-glob/README.md b/node_modules/is-valid-glob/README.md
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+# is-valid-glob [![NPM version](https://badge.fury.io/js/is-valid-glob.svg)](http://badge.fury.io/js/is-valid-glob)
+
+> Return true if a value is a valid glob pattern or patterns.
+
+This really just checks to make sure that a pattern is either a string or array, and if it's an array it's either empty or consists of only strings.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/)
+
+```sh
+$ npm i is-valid-glob --save
+```
+
+## Usage
+
+```js
+var isValidGlob = require('is-valid-glob');
+
+isValidGlob('foo/*.js');
+//=> true
+```
+
+**Valid patterns**
+
+```js
+isValidGlob('a');
+isValidGlob('a.js');
+isValidGlob('*.js');
+isValidGlob(['a', 'b']);
+//=> all true
+```
+
+**Invalid patterns**
+
+```js
+isValidGlob();
+isValidGlob('');
+isValidGlob(null);
+isValidGlob(undefined);
+isValidGlob(new Buffer('foo'));
+isValidGlob(['foo', [[]]]);
+isValidGlob(['foo', [['bar']]]);
+isValidGlob(['foo', {}]);
+isValidGlob({});
+isValidGlob([]);
+isValidGlob(['']);
+//=> all false
+```
+
+## Related projects
+
+* [braces](https://github.com/jonschlinkert/braces): Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces)
+* [expand-range](https://github.com/jonschlinkert/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://github.com/jonschlinkert/expand-range)
+* [fill-range](https://github.com/jonschlinkert/fill-range): Fill in a range of numbers or letters, optionally passing an increment or multiplier to… [more](https://github.com/jonschlinkert/fill-range)
+* [gulp](http://gulpjs.com): The streaming build system
+* [glob-fs](https://github.com/jonschlinkert/glob-fs): file globbing for node.js. speedy and powerful alternative to node-glob.
+* [is-glob](https://github.com/jonschlinkert/is-glob): Returns `true` if the given string looks like a glob pattern.
+* [micromatch](https://github.com/jonschlinkert/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. Just… [more](https://github.com/jonschlinkert/micromatch)
+* [vinyl-fs](http://github.com/wearefractal/vinyl-fs): Vinyl adapter for the file system
+
+## Running tests
+
+Install dev dependencies:
+
+```sh
+$ npm i -d && npm test
+```
+
+## Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/is-valid-glob/issues/new)
+
+## Author
+
+**Jon Schlinkert**
+
++ [github/jonschlinkert](https://github.com/jonschlinkert)
++ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
+
+## License
+
+Copyright © 2015 Jon Schlinkert
+Released under the MIT license.
+
+***
+
+_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on July 11, 2015._
+\ No newline at end of file
diff --git a/node_modules/is-valid-glob/index.js b/node_modules/is-valid-glob/index.js
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+++ b/node_modules/is-valid-glob/index.js
@@ -0,0 +1,21 @@
+'use strict';
+
+module.exports = function isValidGlob(glob) {
+  if (typeof glob === 'string' && glob.length > 0) {
+    return true;
+  }
+  if (Array.isArray(glob)) {
+    return glob.length !== 0 && every(glob);
+  }
+  return false;
+};
+
+function every(arr) {
+  var len = arr.length;
+  while (len--) {
+    if (typeof arr[len] !== 'string' || arr[len].length <= 0) {
+      return false;
+    }
+  }
+  return true;
+}
diff --git a/node_modules/is-valid-glob/package.json b/node_modules/is-valid-glob/package.json
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+++ b/node_modules/is-valid-glob/package.json
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+{
+  "name": "is-valid-glob",
+  "description": "Return true if a value is a valid glob pattern or patterns.",
+  "version": "0.3.0",
+  "homepage": "https://github.com/jonschlinkert/is-valid-glob",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "repository": "jonschlinkert/is-valid-glob",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/is-valid-glob/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "devDependencies": {
+    "mocha": "*"
+  },
+  "keywords": [
+    "array",
+    "check",
+    "glob",
+    "match",
+    "pattern",
+    "patterns",
+    "read",
+    "test",
+    "valid",
+    "validate"
+  ],
+  "verb": {
+    "related": {
+      "list": [
+        "gulp",
+        "vinyl-fs",
+        "is-glob",
+        "micromatch",
+        "braces",
+        "fill-range",
+        "expand-range",
+        "glob-fs"
+      ]
+    }
+  }
+}