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diff --git a/node_modules/postcss-normalize-url/CHANGELOG.md b/node_modules/postcss-normalize-url/CHANGELOG.md
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+# 3.0.8
+
+* Fixes `@namespace` URL conversion; now the semantics of the URL are preserved
+  and only the `url(foo)` to `"foo"` optimisation is performed.
+
+# 3.0.7
+
+* Fix `main` field in `package.json`.
+
+# 3.0.6
+
+* Now compiled with Babel 6.
+
+# 3.0.5
+
+* Fixes an issue where base64 encoded OpenType font urls were being erroneously
+  converted by the module (thanks to @ln-e).
+
+# 3.0.4
+
+* Fixes incorrect minification of empty non-url functions.
+
+# 3.0.3
+
+* Updates postcss-value-parser to version 3 (thanks to @TrySound).
+
+# 3.0.2
+
+* Fixes incorrect minification of chrome-extension urls.
+
+# 3.0.1
+
+* Bump postcss-value-parser to `2.0.2`.
+
+# 3.0.0
+
+* Upgraded to PostCSS 5.
+
+# 2.1.3
+
+* Replaces trim space nodes function with a built in method
+  of postcss-value-parser.
+
+# 2.1.2
+
+* postcss-normalize-url now uses postcss-value-parser to iterate
+  url values (thanks to @TrySound).
+* Fixed `@namespace` URL reduction behaviour. (thanks to @TrySound).
+
+# 2.1.1
+
+* Increased performance by using a single call to `eachInside` rather than two.
+
+# 2.1.0
+
+* Adds `keepWWW` option.
+* Compatibility fixes for `is-absolute-url@2.0.0`.
+
+# 2.0.3
+
+* Fixes an issue where embedded base 64 data was being converted as if it were
+  a URL.
+
+# 2.0.2
+
+* Addresses an issue where relative path separators were converted to
+  backslashes on Windows.
+
+# 2.0.1
+
+* Documentation/metadata tweaks for plugin guidelines compatibility.
+* Bump css-list to 0.1.0, use instead of postcss.list.space for namespace
+  rule normalization.
+
+# 2.0.0
+
+* Improved URL detection when using two or more in the same declaration.
+* node 0.10 is no longer supported.
+
+# 1.2.1
+
+* Patch to address incorrect transformation of `@document` rules.
+
+# 1.2.0
+
+* Fixes an issue where options could not be passed through.
+* Support for normalising URLs in `@namespace` rules.
+
+# 1.1.0
+
+* Now uses the PostCSS `4.1` plugin API.
+
+# 1.0.2
+
+* Adds a JSHint config, code tidied up.
+
+# 1.0.1
+
+* Bug fix; does not transform embedded base 64 or svg images.
+
+# 1.0.0
+
+* Initial release.
diff --git a/node_modules/postcss-normalize-url/LICENSE-MIT b/node_modules/postcss-normalize-url/LICENSE-MIT
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+++ b/node_modules/postcss-normalize-url/LICENSE-MIT
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+Copyright (c) Ben Briggs <beneb.info@gmail.com> (http://beneb.info)
+
+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/postcss-normalize-url/README.md b/node_modules/postcss-normalize-url/README.md
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+# [postcss][postcss]-normalize-url [![Build Status](https://travis-ci.org/ben-eb/postcss-normalize-url.svg?branch=master)][ci] [![NPM version](https://badge.fury.io/js/postcss-normalize-url.svg)][npm] [![Dependency Status](https://gemnasium.com/ben-eb/postcss-normalize-url.svg)][deps]
+
+> [Normalize URLs](https://github.com/sindresorhus/normalize-url) with PostCSS.
+
+## Install
+
+With [npm](https://npmjs.org/package/postcss-normalize-url) do:
+
+```
+npm install postcss-normalize-url --save
+```
+
+## Example
+
+### Input
+
+```css
+h1 {
+    background: url("http://site.com:80/image.jpg")
+}
+```
+
+### Output
+
+```css
+h1 {
+    background: url(http://site.com/image.jpg)
+}
+```
+
+Note that this module will also try to normalize relative URLs, and is capable
+of stripping unnecessary quotes. For more examples, see the [tests](test.js).
+
+## Usage
+
+See the [PostCSS documentation](https://github.com/postcss/postcss#usage) for
+examples for your environment.
+
+## API
+
+### normalize([options])
+
+Please see the [normalize-url documentation][docs]. By default,
+`normalizeProtocol` & `stripFragment` are set to `false`; `stripWWW` to `true`.
+
+## Contributing
+
+Pull requests are welcome. If you add functionality, then please add unit tests
+to cover it.
+
+## License
+
+MIT © [Ben Briggs](http://beneb.info)
+
+[docs]: https://github.com/sindresorhus/normalize-url#options
+
+[ci]:      https://travis-ci.org/ben-eb/postcss-normalize-url
+[deps]:    https://gemnasium.com/ben-eb/postcss-normalize-url
+[npm]:     http://badge.fury.io/js/postcss-normalize-url
+[postcss]: https://github.com/postcss/postcss
diff --git a/node_modules/postcss-normalize-url/dist/index.js b/node_modules/postcss-normalize-url/dist/index.js
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+++ b/node_modules/postcss-normalize-url/dist/index.js
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+'use strict';
+
+var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
+
+var _path = require('path');
+
+var _path2 = _interopRequireDefault(_path);
+
+var _postcss = require('postcss');
+
+var _postcss2 = _interopRequireDefault(_postcss);
+
+var _postcssValueParser = require('postcss-value-parser');
+
+var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
+
+var _normalizeUrl = require('normalize-url');
+
+var _normalizeUrl2 = _interopRequireDefault(_normalizeUrl);
+
+var _isAbsoluteUrl = require('is-absolute-url');
+
+var _isAbsoluteUrl2 = _interopRequireDefault(_isAbsoluteUrl);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var multiline = /\\[\r\n]/;
+var escapeChars = /([\s\(\)"'])/g;
+
+function convert(url, options) {
+    if ((0, _isAbsoluteUrl2.default)(url) || !url.indexOf('//')) {
+        return (0, _normalizeUrl2.default)(url, options);
+    }
+    return _path2.default.normalize(url).replace(new RegExp('\\' + _path2.default.sep, 'g'), '/');
+}
+
+function transformNamespace(rule) {
+    rule.params = (0, _postcssValueParser2.default)(rule.params).walk(function (node) {
+        if (node.type === 'function' && node.value === 'url' && node.nodes.length) {
+            node.type = 'string';
+            node.quote = node.nodes[0].quote || '"';
+            node.value = node.nodes[0].value;
+        }
+        if (node.type === 'string') {
+            node.value = node.value.trim();
+        }
+        return false;
+    }).toString();
+}
+
+function transformDecl(decl, opts) {
+    decl.value = (0, _postcssValueParser2.default)(decl.value).walk(function (node) {
+        if (node.type !== 'function' || node.value !== 'url' || !node.nodes.length) {
+            return false;
+        }
+
+        var url = node.nodes[0];
+        var escaped = void 0;
+
+        node.before = node.after = '';
+        url.value = url.value.trim().replace(multiline, '');
+
+        if (~url.value.indexOf('data:image/') || ~url.value.indexOf('data:application/') || ~url.value.indexOf('data:font/')) {
+            return false;
+        }
+
+        if (!~url.value.indexOf('chrome-extension')) {
+            url.value = convert(url.value, opts);
+        }
+
+        if (escapeChars.test(url.value)) {
+            escaped = url.value.replace(escapeChars, '\\$1');
+            if (escaped.length < url.value.length + (url.type === 'string' ? 2 : 0)) {
+                url.value = escaped;
+                url.type = 'word';
+            }
+        } else {
+            url.type = 'word';
+        }
+
+        return false;
+    }).toString();
+}
+
+module.exports = _postcss2.default.plugin('postcss-normalize-url', function (opts) {
+    opts = _extends({
+        normalizeProtocol: false,
+        stripFragment: false,
+        stripWWW: true
+    }, opts);
+
+    return function (css) {
+        css.walk(function (node) {
+            if (node.type === 'decl') {
+                return transformDecl(node, opts);
+            } else if (node.type === 'atrule' && node.name === 'namespace') {
+                return transformNamespace(node);
+            }
+        });
+    };
+});
\ No newline at end of file
diff --git a/node_modules/postcss-normalize-url/package.json b/node_modules/postcss-normalize-url/package.json
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+++ b/node_modules/postcss-normalize-url/package.json
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+{
+  "name": "postcss-normalize-url",
+  "version": "3.0.8",
+  "description": "Normalize URLs with PostCSS",
+  "main": "dist/index.js",
+  "files": [
+    "dist",
+    "LICENSE-MIT"
+  ],
+  "scripts": {
+    "pretest": "eslint src",
+    "prepublish": "del-cli dist && BABEL_ENV=publish babel src --out-dir dist --ignore /__tests__/",
+    "test": "ava src/__tests__",
+    "test-012": "ava src/__tests__"
+  },
+  "keywords": [
+    "css",
+    "normalize",
+    "optimise",
+    "optimisation",
+    "postcss",
+    "postcss-plugin",
+    "url"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "is-absolute-url": "^2.0.0",
+    "normalize-url": "^1.4.0",
+    "postcss": "^5.0.14",
+    "postcss-value-parser": "^3.2.3"
+  },
+  "devDependencies": {
+    "ava": "^0.17.0",
+    "babel-cli": "^6.3.17",
+    "babel-core": "^6.3.26",
+    "babel-plugin-add-module-exports": "^0.2.1",
+    "babel-preset-es2015": "^6.3.13",
+    "babel-preset-es2015-loose": "^7.0.0",
+    "babel-preset-stage-0": "^6.3.13",
+    "babel-register": "^6.9.0",
+    "del-cli": "^0.2.0",
+    "eslint": "^3.0.0",
+    "eslint-config-cssnano": "^3.0.0",
+    "eslint-plugin-babel": "^3.3.0",
+    "eslint-plugin-import": "^2.0.1"
+  },
+  "homepage": "https://github.com/ben-eb/postcss-normalize-url",
+  "author": {
+    "name": "Ben Briggs",
+    "email": "beneb.info@gmail.com",
+    "url": "http://beneb.info"
+  },
+  "repository": "ben-eb/postcss-normalize-url",
+  "eslintConfig": {
+    "extends": "cssnano"
+  },
+  "ava": {
+    "require": "babel-register"
+  }
+}