From 7375789e46a94175ae9a0e345edda9b0c99c1ffe Mon Sep 17 00:00:00 2001
From: Yangshun Tay <tay.yang.shun@gmail.com>
Date: Sun, 9 Jun 2019 23:21:36 -0700
Subject: [PATCH] feat(v2): implement Google gtag plugin

---
 .../package.json                              |  16 +
 .../docusaurus-plugin-google-gtag/src/gtag.js |  54 ++
 .../src/index.js                              |  18 +
 .../docusaurus-preset-classic/src/index.js    |   1 +
 website/docusaurus.config.js                  |  41 +-
 yarn.lock                                     | 520 +++++++++++++++++-
 6 files changed, 625 insertions(+), 25 deletions(-)
 create mode 100644 packages/docusaurus-plugin-google-gtag/package.json
 create mode 100644 packages/docusaurus-plugin-google-gtag/src/gtag.js
 create mode 100644 packages/docusaurus-plugin-google-gtag/src/index.js

diff --git a/packages/docusaurus-plugin-google-gtag/package.json b/packages/docusaurus-plugin-google-gtag/package.json
new file mode 100644
index 0000000000..c5d7c8cf8d
--- /dev/null
+++ b/packages/docusaurus-plugin-google-gtag/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "@docusaurus/plugin-google-gtag",
+  "version": "2.0.0-alpha.19",
+  "description": "Global Site Tag (gtag.js) plugin for Docusaurus",
+  "main": "src/index.js",
+  "publishConfig": {
+    "access": "public"
+  },
+  "license": "MIT",
+  "peerDependencies": {
+    "@docusaurus/core": "^2.0.0"
+  },
+  "engines": {
+    "node": ">=8"
+  }
+}
diff --git a/packages/docusaurus-plugin-google-gtag/src/gtag.js b/packages/docusaurus-plugin-google-gtag/src/gtag.js
new file mode 100644
index 0000000000..9ade3e8577
--- /dev/null
+++ b/packages/docusaurus-plugin-google-gtag/src/gtag.js
@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import siteConfig from '@generated/docusaurus.config';
+
+const {themeConfig} = siteConfig;
+
+export default (function() {
+  if (!themeConfig.gtag) {
+    return null;
+  }
+
+  const {trackingID} = themeConfig.gtag;
+  if (process.env.NODE_ENV === 'development' && !trackingID) {
+    console.warn(
+      'You specified the `gtag` object in `themeConfig` but the `trackingID` field was missing. ' +
+        'Please ensure this is not a mistake.',
+    );
+    return null;
+  }
+
+  if (
+    // process.env.NODE_ENV !== 'production' || // TODO: Add it back after testing that it works.
+    !trackingID ||
+    typeof window === 'undefined'
+  ) {
+    return null;
+  }
+
+  const $scriptEl = window.document.createElement('script');
+  $scriptEl.async = 1;
+  $scriptEl.src = `https://www.googletagmanager.com/gtag/js?id=${trackingID}`;
+  window.document.head.appendChild($scriptEl);
+
+  window.dataLayer = window.dataLayer || [];
+  // eslint-disable-next-line no-inner-declarations
+  function gtag(...args) {
+    window.dataLayer.push(args);
+  }
+  // Expose globally.
+  window.gtag = gtag;
+  gtag('js', new Date());
+  gtag('config', trackingID);
+
+  return {
+    onRouteUpdate({location}) {
+      gtag('event', 'page_view', {page_path: location.pathname});
+    },
+  };
+})();
diff --git a/packages/docusaurus-plugin-google-gtag/src/index.js b/packages/docusaurus-plugin-google-gtag/src/index.js
new file mode 100644
index 0000000000..27405a7340
--- /dev/null
+++ b/packages/docusaurus-plugin-google-gtag/src/index.js
@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+const path = require('path');
+
+module.exports = function() {
+  return {
+    name: 'docusaurus-plugin-gtag',
+
+    getClientModules() {
+      return [path.resolve(__dirname, './gtag')];
+    },
+  };
+};
diff --git a/packages/docusaurus-preset-classic/src/index.js b/packages/docusaurus-preset-classic/src/index.js
index 9c82f77e5b..f25682ffd6 100644
--- a/packages/docusaurus-preset-classic/src/index.js
+++ b/packages/docusaurus-preset-classic/src/index.js
@@ -20,6 +20,7 @@ module.exports = function preset(context, opts = {}) {
       ['@docusaurus/plugin-content-docs', opts.docs],
       ['@docusaurus/plugin-content-blog', opts.blog],
       ['@docusaurus/plugin-content-pages', opts.pages],
+      ['@docusaurus/plugin-google-gtag', opts.gtag],
       ['@docusaurus/plugin-sitemap', opts.sitemap],
     ],
   };
diff --git a/website/docusaurus.config.js b/website/docusaurus.config.js
index dabb950239..cc1c6bab7b 100644
--- a/website/docusaurus.config.js
+++ b/website/docusaurus.config.js
@@ -13,7 +13,29 @@ module.exports = {
   baseUrl: '/',
   url: 'https://v2.docusaurus.io',
   favicon: 'img/docusaurus.ico',
+  themes: ['@docusaurus/theme-live-codeblock'],
+  presets: [
+    [
+      '@docusaurus/preset-classic',
+      {
+        docs: {
+          path: 'docs',
+          sidebarPath: require.resolve('./sidebars.js'),
+        },
+        blog: {
+          path: '../website-1.x/blog',
+          postsPerPage: 3,
+        },
+        theme: {
+          customCss: require.resolve('./css/custom.css'),
+        },
+      },
+    ],
+  ],
   themeConfig: {
+    gtag: {
+      trackingID: 'UA-141789564-1',
+    },
     algolia: {
       apiKey: '47ecd3b21be71c5822571b9f59e52544',
       indexName: 'docusaurus-2',
@@ -94,23 +116,4 @@ module.exports = {
       copyright: `Copyright © ${new Date().getFullYear()} Facebook, Inc.`,
     },
   },
-  themes: ['@docusaurus/theme-live-codeblock'],
-  presets: [
-    [
-      '@docusaurus/preset-classic',
-      {
-        docs: {
-          path: 'docs',
-          sidebarPath: require.resolve('./sidebars.js'),
-        },
-        blog: {
-          path: '../website-1.x/blog',
-          postsPerPage: 3,
-        },
-        theme: {
-          customCss: require.resolve('./css/custom.css'),
-        },
-      },
-    ],
-  ],
 };
diff --git a/yarn.lock b/yarn.lock
index cd3c07e980..c39c029a36 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2455,7 +2455,7 @@ algoliasearch@^3.24.5:
     semver "^5.1.0"
     tunnel-agent "^0.6.0"
 
-alphanum-sort@^1.0.0:
+alphanum-sort@^1.0.0, alphanum-sort@^1.0.1, alphanum-sort@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/alphanum-sort/-/alphanum-sort-1.0.2.tgz#97a1119649b211ad33691d9f9f486a8ec9fbe0a3"
   integrity sha1-l6ERlkmyEa0zaR2fn0hqjsn74KM=
@@ -2803,7 +2803,19 @@ autolinker@~0.15.0:
   resolved "https://registry.yarnpkg.com/autolinker/-/autolinker-0.15.3.tgz#342417d8f2f3461b14cf09088d5edf8791dc9832"
   integrity sha1-NCQX2PLzRhsUzwkIjV7fh5HcmDI=
 
-autoprefixer@^9.6.0:
+autoprefixer@^6.3.1:
+  version "6.7.7"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-6.7.7.tgz#1dbd1c835658e35ce3f9984099db00585c782014"
+  integrity sha1-Hb0cg1ZY41zj+ZhAmdsAWFx4IBQ=
+  dependencies:
+    browserslist "^1.7.6"
+    caniuse-db "^1.0.30000634"
+    normalize-range "^0.1.2"
+    num2fraction "^1.2.2"
+    postcss "^5.2.16"
+    postcss-value-parser "^3.2.3"
+
+autoprefixer@^9.1.5, autoprefixer@^9.6.0:
   version "9.6.0"
   resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.6.0.tgz#0111c6bde2ad20c6f17995a33fad7cf6854b4c87"
   integrity sha512-kuip9YilBqhirhHEGHaBTZKXL//xxGnzvsD0FtBQa6z+A69qZD6s/BAX9VzDF1i9VKDquTJDQaPLSEhOnL6FvQ==
@@ -2923,6 +2935,11 @@ bail@^1.0.0:
   resolved "https://registry.yarnpkg.com/bail/-/bail-1.0.4.tgz#7181b66d508aa3055d3f6c13f0a0c720641dde9b"
   integrity sha512-S8vuDB4w6YpRhICUDET3guPlQpaJl7od94tpZ0Fvnyp+MKW/HyDTcRDck+29C9g+d/qQHnddRH3+94kZdrW0Ww==
 
+balanced-match@^0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
+  integrity sha1-yz8+PHMtwPAe5wtAPzAuYddwmDg=
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
@@ -3218,6 +3235,14 @@ browserslist@4.5.4:
     electron-to-chromium "^1.3.122"
     node-releases "^1.1.13"
 
+browserslist@^1.3.6, browserslist@^1.5.2, browserslist@^1.7.6:
+  version "1.7.7"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-1.7.7.tgz#0bd76704258be829b2398bb50e4b62d1a166b0b9"
+  integrity sha1-C9dnBCWL6CmyOYu1Dkti0aFmsLk=
+  dependencies:
+    caniuse-db "^1.0.30000639"
+    electron-to-chromium "^1.2.7"
+
 browserslist@^4.0.0:
   version "4.6.1"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.6.1.tgz#ee5059b1aec18cbec9d055d6cb5e24ae50343a9b"
@@ -3505,6 +3530,16 @@ camelcase@^5.0.0, camelcase@^5.2.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
+caniuse-api@^1.5.2:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-1.6.1.tgz#b534e7c734c4f81ec5fbe8aca2ad24354b962c6c"
+  integrity sha1-tTTnxzTE+B7F++isoq0kNUuWLGw=
+  dependencies:
+    browserslist "^1.3.6"
+    caniuse-db "^1.0.30000529"
+    lodash.memoize "^4.1.2"
+    lodash.uniq "^4.5.0"
+
 caniuse-api@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-3.0.0.tgz#5e4d90e2274961d46291997df599e3ed008ee4c0"
@@ -3515,6 +3550,11 @@ caniuse-api@^3.0.0:
     lodash.memoize "^4.1.2"
     lodash.uniq "^4.5.0"
 
+caniuse-db@^1.0.30000529, caniuse-db@^1.0.30000634, caniuse-db@^1.0.30000639:
+  version "1.0.30000974"
+  resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30000974.tgz#ffc887e57e7db7067da203b102071a1d2477c5c8"
+  integrity sha512-zeXkn1hbjMvXdadcyUELZnGu7OjlW3HK0956DWczM7ZJqGV4jFaPi8CidB8QiAj5xl5O9I+f7j9F0AFmXmGTpg==
+
 caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000967, caniuse-lite@^1.0.30000971, caniuse-lite@^1.0.30000974:
   version "1.0.30000974"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000974.tgz#b7afe14ee004e97ce6dc73e3f878290a12928ad8"
@@ -3735,6 +3775,13 @@ circular-json@^0.3.1:
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
   integrity sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==
 
+clap@^1.0.9:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/clap/-/clap-1.2.3.tgz#4f36745b32008492557f46412d66d50cb99bce51"
+  integrity sha512-4CoL/A3hf90V3VIEjeuhSvlGFEHKzOz+Wfc2IVZc+FaUgU0ZQafJTP49fvnULipOPcAfqhyI2duwQyns6xqjYA==
+  dependencies:
+    chalk "^1.1.3"
+
 class-utils@^0.3.5:
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"
@@ -3836,6 +3883,13 @@ coa@^2.0.2:
     chalk "^2.4.1"
     q "^1.1.2"
 
+coa@~1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/coa/-/coa-1.0.4.tgz#a9ef153660d6a86a8bdec0289a5c684d217432fd"
+  integrity sha1-qe8VNmDWqGqL3sAomlxoTSF0Mv0=
+  dependencies:
+    q "^1.1.2"
+
 code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
@@ -3859,7 +3913,7 @@ collection-visit@^1.0.0:
     map-visit "^1.0.0"
     object-visit "^1.0.0"
 
-color-convert@^1.9.0, color-convert@^1.9.1:
+color-convert@^1.3.0, color-convert@^1.9.0, color-convert@^1.9.1:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
   integrity sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==
@@ -3876,6 +3930,13 @@ color-name@^1.0.0:
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
   integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
 
+color-string@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/color-string/-/color-string-0.3.0.tgz#27d46fb67025c5c2fa25993bfbf579e47841b991"
+  integrity sha1-J9RvtnAlxcL6JZk7+/V55HhBuZE=
+  dependencies:
+    color-name "^1.0.0"
+
 color-string@^1.5.2:
   version "1.5.3"
   resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.5.3.tgz#c9bbc5f01b58b5492f3d6857459cb6590ce204cc"
@@ -3884,6 +3945,15 @@ color-string@^1.5.2:
     color-name "^1.0.0"
     simple-swizzle "^0.2.2"
 
+color@^0.11.0:
+  version "0.11.4"
+  resolved "https://registry.yarnpkg.com/color/-/color-0.11.4.tgz#6d7b5c74fb65e841cd48792ad1ed5e07b904d764"
+  integrity sha1-bXtcdPtl6EHNSHkq0e1eB7kE12Q=
+  dependencies:
+    clone "^1.0.2"
+    color-convert "^1.3.0"
+    color-string "^0.3.0"
+
 color@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/color/-/color-2.0.1.tgz#e4ed78a3c4603d0891eba5430b04b86314f4c839"
@@ -3900,6 +3970,20 @@ color@^3.0.0:
     color-convert "^1.9.1"
     color-string "^1.5.2"
 
+colormin@^1.0.5:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/colormin/-/colormin-1.1.2.tgz#ea2f7420a72b96881a38aae59ec124a6f7298133"
+  integrity sha1-6i90IKcrlogaOKrlnsEkpvcpgTM=
+  dependencies:
+    color "^0.11.0"
+    css-color-names "0.0.4"
+    has "^1.0.1"
+
+colors@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
+  integrity sha1-FopHAXVran9RoSzgyXv6KMCE7WM=
+
 columnify@^1.5.4:
   version "1.5.4"
   resolved "https://registry.yarnpkg.com/columnify/-/columnify-1.5.4.tgz#4737ddf1c7b69a8a7c340570782e947eec8e78bb"
@@ -4523,6 +4607,44 @@ cssnano-util-same-parent@^4.0.0:
   resolved "https://registry.yarnpkg.com/cssnano-util-same-parent/-/cssnano-util-same-parent-4.0.1.tgz#574082fb2859d2db433855835d9a8456ea18bbf3"
   integrity sha512-WcKx5OY+KoSIAxBW6UBBRay1U6vkYheCdjyVNDm85zt5K9mHoGOfsOsqIszfAqrQQFIIKgjh2+FDgIj/zsl21Q==
 
+cssnano@^3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-3.10.0.tgz#4f38f6cea2b9b17fa01490f23f1dc68ea65c1c38"
+  integrity sha1-Tzj2zqK5sX+gFJDyPx3GjqZcHDg=
+  dependencies:
+    autoprefixer "^6.3.1"
+    decamelize "^1.1.2"
+    defined "^1.0.0"
+    has "^1.0.1"
+    object-assign "^4.0.1"
+    postcss "^5.0.14"
+    postcss-calc "^5.2.0"
+    postcss-colormin "^2.1.8"
+    postcss-convert-values "^2.3.4"
+    postcss-discard-comments "^2.0.4"
+    postcss-discard-duplicates "^2.0.1"
+    postcss-discard-empty "^2.0.1"
+    postcss-discard-overridden "^0.1.1"
+    postcss-discard-unused "^2.2.1"
+    postcss-filter-plugins "^2.0.0"
+    postcss-merge-idents "^2.1.5"
+    postcss-merge-longhand "^2.0.1"
+    postcss-merge-rules "^2.0.3"
+    postcss-minify-font-values "^1.0.2"
+    postcss-minify-gradients "^1.0.1"
+    postcss-minify-params "^1.0.4"
+    postcss-minify-selectors "^2.0.4"
+    postcss-normalize-charset "^1.1.0"
+    postcss-normalize-url "^3.0.7"
+    postcss-ordered-values "^2.1.0"
+    postcss-reduce-idents "^2.2.2"
+    postcss-reduce-initial "^1.0.0"
+    postcss-reduce-transforms "^1.0.3"
+    postcss-svgo "^2.1.1"
+    postcss-unique-selectors "^2.0.2"
+    postcss-value-parser "^3.2.3"
+    postcss-zindex "^2.0.1"
+
 cssnano@^4.1.0:
   version "4.1.10"
   resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-4.1.10.tgz#0ac41f0b13d13d465487e111b778d42da631b8b2"
@@ -4540,6 +4662,14 @@ csso@^3.5.1:
   dependencies:
     css-tree "1.0.0-alpha.29"
 
+csso@~2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/csso/-/csso-2.3.2.tgz#ddd52c587033f49e94b71fc55569f252e8ff5f85"
+  integrity sha1-3dUsWHAz9J6Utx/FVWnyUuj/X4U=
+  dependencies:
+    clap "^1.0.9"
+    source-map "^0.5.3"
+
 cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.6.tgz#f85206cee04efa841f3c5982a74ba96ab20d65ad"
@@ -4802,6 +4932,11 @@ define-property@^2.0.2:
     is-descriptor "^1.0.2"
     isobject "^3.0.1"
 
+defined@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
+  integrity sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=
+
 del@^4.0.0, del@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/del/-/del-4.1.1.tgz#9e8f117222ea44a31ff3a156c049b99052a9f0b4"
@@ -4983,6 +5118,59 @@ doctrine@^2.1.0:
   dependencies:
     esutils "^2.0.2"
 
+docusaurus@^2.0.0-alpha.19:
+  version "2.0.0-alpha.19"
+  resolved "https://registry.yarnpkg.com/docusaurus/-/docusaurus-2.0.0-alpha.19.tgz#0ed6c2be2957f4118d21df5df0251b71df9fce9a"
+  integrity sha512-70jtU7XpKW7w3iN75UvqbFmiq7OS3Rvfj660S3jDidFaCsoXoJyT49ApHKSEIKrurRmwZA4nF7iWbMpH8UWU2Q==
+  dependencies:
+    "@babel/core" "^7.0.0"
+    "@babel/plugin-proposal-class-properties" "^7.0.0"
+    "@babel/plugin-proposal-object-rest-spread" "^7.0.0"
+    "@babel/polyfill" "^7.0.0"
+    "@babel/preset-env" "^7.0.0"
+    "@babel/preset-react" "^7.0.0"
+    "@babel/register" "^7.0.0"
+    "@babel/traverse" "^7.0.0"
+    "@babel/types" "^7.1.2"
+    autoprefixer "^9.1.5"
+    babylon "^6.17.4"
+    chalk "^2.4.2"
+    classnames "^2.2.6"
+    color "^2.0.1"
+    commander "^2.20.0"
+    cross-spawn "^6.0.5"
+    crowdin-cli "^0.3.0"
+    cssnano "^3.10.0"
+    escape-string-regexp "^1.0.5"
+    express "^4.17.1"
+    feed "^1.1.0"
+    fs-extra "^5.0.0"
+    gaze "^1.1.2"
+    glob "^7.1.3"
+    highlight.js "^9.12.0"
+    imagemin "^6.0.0"
+    imagemin-gifsicle "^6.0.1"
+    imagemin-jpegtran "^6.0.0"
+    imagemin-optipng "^6.0.0"
+    imagemin-svgo "^7.0.0"
+    lodash "^4.17.11"
+    markdown-toc "^1.2.0"
+    mkdirp "^0.5.1"
+    portfinder "^1.0.17"
+    postcss "^7.0.1"
+    prismjs "^1.15.0"
+    react "^16.5.0"
+    react-dev-utils "^5.0.2"
+    react-dom "^16.5.0"
+    remarkable "^1.7.1"
+    request "^2.87.0"
+    shelljs "^0.8.3"
+    sitemap "^1.13.0"
+    tcp-port-used "^0.1.2"
+    tiny-lr "^1.1.1"
+    tree-node-cli "^1.2.5"
+    truncate-html "^1.0.1"
+
 dom-converter@^0.2:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/dom-converter/-/dom-converter-0.2.0.tgz#6721a9daee2e293682955b6afe416771627bb768"
@@ -5145,6 +5333,11 @@ ejs@^2.6.1:
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.6.1.tgz#498ec0d495655abc6f23cd61868d926464071aa0"
   integrity sha512-0xy4A/twfrRCnkhfk8ErDi5DqdAsAqeGxht4xkCUrsvhhbQNs7E+4jV0CN7+NKIY0aHE72+XvqtBIXzD31ZbXQ==
 
+electron-to-chromium@^1.2.7:
+  version "1.3.155"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.155.tgz#ebf0cc8eeaffd6151d1efad60fd9e021fb45fd3a"
+  integrity sha512-/ci/XgZG8jkLYOgOe3mpJY1onxPPTDY17y7scldhnSjjZqV6VvREG/LvwhRuV7BJbnENFfuDWZkSqlTh4x9ZjQ==
+
 electron-to-chromium@^1.3.122:
   version "1.3.136"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.136.tgz#758a156109077536780cfa8207b1aeaa99843e33"
@@ -5555,6 +5748,11 @@ espree@^3.5.4:
     acorn "^5.5.0"
     acorn-jsx "^3.0.0"
 
+esprima@^2.6.0:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+  integrity sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=
+
 esprima@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
@@ -6178,6 +6376,11 @@ flat-cache@^1.2.1:
     rimraf "~2.6.2"
     write "^0.2.1"
 
+flatten@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
+  integrity sha1-2uRqnXj74lKSJYzB54CkHZXAN4I=
+
 flush-write-stream@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.1.1.tgz#8dd7d873a1babc207d94ead0c2e0e44276ebf2e8"
@@ -6818,6 +7021,11 @@ has-ansi@^2.0.0:
   dependencies:
     ansi-regex "^2.0.0"
 
+has-flag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
+  integrity sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=
+
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -7933,6 +8141,13 @@ is-subset@^0.1.1:
   resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
   integrity sha1-ilkRfZMt4d4A8kX83TnOQ/HpOaY=
 
+is-svg@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-svg/-/is-svg-2.1.0.tgz#cf61090da0d9efbcab8722deba6f032208dbb0e9"
+  integrity sha1-z2EJDaDZ77yrhyLeum8DIgjbsOk=
+  dependencies:
+    html-comment-regex "^1.1.0"
+
 is-svg@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-svg/-/is-svg-3.0.0.tgz#9321dbd29c212e5ca99c4fa9794c714bcafa2f75"
@@ -8477,6 +8692,11 @@ jpegtran-bin@^4.0.0:
     bin-wrapper "^4.0.0"
     logalot "^2.0.0"
 
+js-base64@^2.1.9:
+  version "2.5.1"
+  resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-2.5.1.tgz#1efa39ef2c5f7980bb1784ade4a8af2de3291121"
+  integrity sha512-M7kLczedRMYX4L8Mdh4MzyAMM9O5osx+4FcOQuTvr3A9F2D9S5JXheN0ewNbrvK2UatkTRhL5ejGmGSjNMiZuw==
+
 js-levenshtein@^1.1.3:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/js-levenshtein/-/js-levenshtein-1.1.6.tgz#c6cee58eb3550372df8deb85fad5ce66ce01d59d"
@@ -8500,6 +8720,14 @@ js-yaml@^3.10.0, js-yaml@^3.11.0, js-yaml@^3.13.1, js-yaml@^3.8.1, js-yaml@^3.9.
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@~3.7.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.7.0.tgz#5c967ddd837a9bfdca5f2de84253abe8a1c03b80"
+  integrity sha1-XJZ93YN6m/3KXy3oQlOr6KHAO4A=
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^2.6.0"
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
@@ -9297,6 +9525,11 @@ markdown-toc@^1.2.0:
     repeat-string "^1.6.1"
     strip-color "^0.1.0"
 
+math-expression-evaluator@^1.2.14:
+  version "1.2.17"
+  resolved "https://registry.yarnpkg.com/math-expression-evaluator/-/math-expression-evaluator-1.2.17.tgz#de819fdbcd84dccd8fae59c6aeb79615b9d266ac"
+  integrity sha1-3oGf282E3M2PrlnGrreWFbnSZqw=
+
 math-random@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.4.tgz#5dd6943c938548267016d4e34f057583080c514c"
@@ -9946,7 +10179,7 @@ normalize-range@^0.1.2:
   resolved "https://registry.yarnpkg.com/normalize-range/-/normalize-range-0.1.2.tgz#2d10c06bdfd312ea9777695a4d28439456b75942"
   integrity sha1-LRDAa9/TEuqXd2laTShDlFa3WUI=
 
-normalize-url@1.9.1:
+normalize-url@1.9.1, normalize-url@^1.4.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-1.9.1.tgz#2cc0d66b31ea23036458436e3620d85954c66c3c"
   integrity sha1-LMDWazHqIwNkWENuNiDYWVTGbDw=
@@ -10870,6 +11103,15 @@ posix-character-classes@^0.1.0:
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
   integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
 
+postcss-calc@^5.2.0:
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-5.3.1.tgz#77bae7ca928ad85716e2fda42f261bf7c1d65b5e"
+  integrity sha1-d7rnypKK2FcW4v2kLyYb98HWW14=
+  dependencies:
+    postcss "^5.0.2"
+    postcss-message-helpers "^2.0.0"
+    reduce-css-calc "^1.2.6"
+
 postcss-calc@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-7.0.1.tgz#36d77bab023b0ecbb9789d84dcb23c4941145436"
@@ -10880,6 +11122,15 @@ postcss-calc@^7.0.1:
     postcss-selector-parser "^5.0.0-rc.4"
     postcss-value-parser "^3.3.1"
 
+postcss-colormin@^2.1.8:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-2.2.2.tgz#6631417d5f0e909a3d7ec26b24c8a8d1e4f96e4b"
+  integrity sha1-ZjFBfV8OkJo9fsJrJMio0eT5bks=
+  dependencies:
+    colormin "^1.0.5"
+    postcss "^5.0.13"
+    postcss-value-parser "^3.2.3"
+
 postcss-colormin@^4.0.3:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-4.0.3.tgz#ae060bce93ed794ac71264f08132d550956bd381"
@@ -10891,6 +11142,14 @@ postcss-colormin@^4.0.3:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-convert-values@^2.3.4:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/postcss-convert-values/-/postcss-convert-values-2.6.1.tgz#bbd8593c5c1fd2e3d1c322bb925dcae8dae4d62d"
+  integrity sha1-u9hZPFwf0uPRwyK7kl3K6Nrk1i0=
+  dependencies:
+    postcss "^5.0.11"
+    postcss-value-parser "^3.1.2"
+
 postcss-convert-values@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/postcss-convert-values/-/postcss-convert-values-4.0.1.tgz#ca3813ed4da0f812f9d43703584e449ebe189a7f"
@@ -10899,6 +11158,13 @@ postcss-convert-values@^4.0.1:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-discard-comments@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/postcss-discard-comments/-/postcss-discard-comments-2.0.4.tgz#befe89fafd5b3dace5ccce51b76b81514be00e3d"
+  integrity sha1-vv6J+v1bPazlzM5Rt2uBUUvgDj0=
+  dependencies:
+    postcss "^5.0.14"
+
 postcss-discard-comments@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-discard-comments/-/postcss-discard-comments-4.0.2.tgz#1fbabd2c246bff6aaad7997b2b0918f4d7af4033"
@@ -10906,6 +11172,13 @@ postcss-discard-comments@^4.0.2:
   dependencies:
     postcss "^7.0.0"
 
+postcss-discard-duplicates@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/postcss-discard-duplicates/-/postcss-discard-duplicates-2.1.0.tgz#b9abf27b88ac188158a5eb12abcae20263b91932"
+  integrity sha1-uavye4isGIFYpesSq8riAmO5GTI=
+  dependencies:
+    postcss "^5.0.4"
+
 postcss-discard-duplicates@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-discard-duplicates/-/postcss-discard-duplicates-4.0.2.tgz#3fe133cd3c82282e550fc9b239176a9207b784eb"
@@ -10913,6 +11186,13 @@ postcss-discard-duplicates@^4.0.2:
   dependencies:
     postcss "^7.0.0"
 
+postcss-discard-empty@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/postcss-discard-empty/-/postcss-discard-empty-2.1.0.tgz#d2b4bd9d5ced5ebd8dcade7640c7d7cd7f4f92b5"
+  integrity sha1-0rS9nVztXr2Nyt52QMfXzX9PkrU=
+  dependencies:
+    postcss "^5.0.14"
+
 postcss-discard-empty@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/postcss-discard-empty/-/postcss-discard-empty-4.0.1.tgz#c8c951e9f73ed9428019458444a02ad90bb9f765"
@@ -10920,6 +11200,13 @@ postcss-discard-empty@^4.0.1:
   dependencies:
     postcss "^7.0.0"
 
+postcss-discard-overridden@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/postcss-discard-overridden/-/postcss-discard-overridden-0.1.1.tgz#8b1eaf554f686fb288cd874c55667b0aa3668d58"
+  integrity sha1-ix6vVU9ob7KIzYdMVWZ7CqNmjVg=
+  dependencies:
+    postcss "^5.0.16"
+
 postcss-discard-overridden@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/postcss-discard-overridden/-/postcss-discard-overridden-4.0.1.tgz#652aef8a96726f029f5e3e00146ee7a4e755ff57"
@@ -10927,6 +11214,37 @@ postcss-discard-overridden@^4.0.1:
   dependencies:
     postcss "^7.0.0"
 
+postcss-discard-unused@^2.2.1:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/postcss-discard-unused/-/postcss-discard-unused-2.2.3.tgz#bce30b2cc591ffc634322b5fb3464b6d934f4433"
+  integrity sha1-vOMLLMWR/8Y0Mitfs0ZLbZNPRDM=
+  dependencies:
+    postcss "^5.0.14"
+    uniqs "^2.0.0"
+
+postcss-filter-plugins@^2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-filter-plugins/-/postcss-filter-plugins-2.0.3.tgz#82245fdf82337041645e477114d8e593aa18b8ec"
+  integrity sha512-T53GVFsdinJhgwm7rg1BzbeBRomOg9y5MBVhGcsV0CxurUdVj1UlPdKtn7aqYA/c/QVkzKMjq2bSV5dKG5+AwQ==
+  dependencies:
+    postcss "^5.0.4"
+
+postcss-merge-idents@^2.1.5:
+  version "2.1.7"
+  resolved "https://registry.yarnpkg.com/postcss-merge-idents/-/postcss-merge-idents-2.1.7.tgz#4c5530313c08e1d5b3bbf3d2bbc747e278eea270"
+  integrity sha1-TFUwMTwI4dWzu/PSu8dH4njuonA=
+  dependencies:
+    has "^1.0.1"
+    postcss "^5.0.10"
+    postcss-value-parser "^3.1.1"
+
+postcss-merge-longhand@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-merge-longhand/-/postcss-merge-longhand-2.0.2.tgz#23d90cd127b0a77994915332739034a1a4f3d658"
+  integrity sha1-I9kM0Sewp3mUkVMyc5A0oaTz1lg=
+  dependencies:
+    postcss "^5.0.4"
+
 postcss-merge-longhand@^4.0.11:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/postcss-merge-longhand/-/postcss-merge-longhand-4.0.11.tgz#62f49a13e4a0ee04e7b98f42bb16062ca2549e24"
@@ -10937,6 +11255,17 @@ postcss-merge-longhand@^4.0.11:
     postcss-value-parser "^3.0.0"
     stylehacks "^4.0.0"
 
+postcss-merge-rules@^2.0.3:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/postcss-merge-rules/-/postcss-merge-rules-2.1.2.tgz#d1df5dfaa7b1acc3be553f0e9e10e87c61b5f721"
+  integrity sha1-0d9d+qexrMO+VT8OnhDofGG19yE=
+  dependencies:
+    browserslist "^1.5.2"
+    caniuse-api "^1.5.2"
+    postcss "^5.0.4"
+    postcss-selector-parser "^2.2.2"
+    vendors "^1.0.0"
+
 postcss-merge-rules@^4.0.3:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/postcss-merge-rules/-/postcss-merge-rules-4.0.3.tgz#362bea4ff5a1f98e4075a713c6cb25aefef9a650"
@@ -10949,6 +11278,20 @@ postcss-merge-rules@^4.0.3:
     postcss-selector-parser "^3.0.0"
     vendors "^1.0.0"
 
+postcss-message-helpers@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-message-helpers/-/postcss-message-helpers-2.0.0.tgz#a4f2f4fab6e4fe002f0aed000478cdf52f9ba60e"
+  integrity sha1-pPL0+rbk/gAvCu0ABHjN9S+bpg4=
+
+postcss-minify-font-values@^1.0.2:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/postcss-minify-font-values/-/postcss-minify-font-values-1.0.5.tgz#4b58edb56641eba7c8474ab3526cafd7bbdecb69"
+  integrity sha1-S1jttWZB66fIR0qzUmyv17vey2k=
+  dependencies:
+    object-assign "^4.0.1"
+    postcss "^5.0.4"
+    postcss-value-parser "^3.0.2"
+
 postcss-minify-font-values@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-minify-font-values/-/postcss-minify-font-values-4.0.2.tgz#cd4c344cce474343fac5d82206ab2cbcb8afd5a6"
@@ -10957,6 +11300,14 @@ postcss-minify-font-values@^4.0.2:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-minify-gradients@^1.0.1:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/postcss-minify-gradients/-/postcss-minify-gradients-1.0.5.tgz#5dbda11373703f83cfb4a3ea3881d8d75ff5e6e1"
+  integrity sha1-Xb2hE3NwP4PPtKPqOIHY11/15uE=
+  dependencies:
+    postcss "^5.0.12"
+    postcss-value-parser "^3.3.0"
+
 postcss-minify-gradients@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-minify-gradients/-/postcss-minify-gradients-4.0.2.tgz#93b29c2ff5099c535eecda56c4aa6e665a663471"
@@ -10967,6 +11318,16 @@ postcss-minify-gradients@^4.0.2:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-minify-params@^1.0.4:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-params/-/postcss-minify-params-1.2.2.tgz#ad2ce071373b943b3d930a3fa59a358c28d6f1f3"
+  integrity sha1-rSzgcTc7lDs9kwo/pZo1jCjW8fM=
+  dependencies:
+    alphanum-sort "^1.0.1"
+    postcss "^5.0.2"
+    postcss-value-parser "^3.0.2"
+    uniqs "^2.0.0"
+
 postcss-minify-params@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-minify-params/-/postcss-minify-params-4.0.2.tgz#6b9cef030c11e35261f95f618c90036d680db874"
@@ -10979,6 +11340,16 @@ postcss-minify-params@^4.0.2:
     postcss-value-parser "^3.0.0"
     uniqs "^2.0.0"
 
+postcss-minify-selectors@^2.0.4:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/postcss-minify-selectors/-/postcss-minify-selectors-2.1.1.tgz#b2c6a98c0072cf91b932d1a496508114311735bf"
+  integrity sha1-ssapjAByz5G5MtGkllCBFDEXNb8=
+  dependencies:
+    alphanum-sort "^1.0.2"
+    has "^1.0.1"
+    postcss "^5.0.14"
+    postcss-selector-parser "^2.0.0"
+
 postcss-minify-selectors@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-minify-selectors/-/postcss-minify-selectors-4.0.2.tgz#e2e5eb40bfee500d0cd9243500f5f8ea4262fbd8"
@@ -11021,6 +11392,13 @@ postcss-modules-values@^2.0.0:
     icss-replace-symbols "^1.1.0"
     postcss "^7.0.6"
 
+postcss-normalize-charset@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-charset/-/postcss-normalize-charset-1.1.1.tgz#ef9ee71212d7fe759c78ed162f61ed62b5cb93f1"
+  integrity sha1-757nEhLX/nWceO0WL2HtYrXLk/E=
+  dependencies:
+    postcss "^5.0.5"
+
 postcss-normalize-charset@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/postcss-normalize-charset/-/postcss-normalize-charset-4.0.1.tgz#8b35add3aee83a136b0471e0d59be58a50285dd4"
@@ -11084,6 +11462,16 @@ postcss-normalize-unicode@^4.0.1:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-normalize-url@^3.0.7:
+  version "3.0.8"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-url/-/postcss-normalize-url-3.0.8.tgz#108f74b3f2fcdaf891a2ffa3ea4592279fc78222"
+  integrity sha1-EI90s/L82viRov+j6kWSJ5/HgiI=
+  dependencies:
+    is-absolute-url "^2.0.0"
+    normalize-url "^1.4.0"
+    postcss "^5.0.14"
+    postcss-value-parser "^3.2.3"
+
 postcss-normalize-url@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/postcss-normalize-url/-/postcss-normalize-url-4.0.1.tgz#10e437f86bc7c7e58f7b9652ed878daaa95faae1"
@@ -11102,6 +11490,14 @@ postcss-normalize-whitespace@^4.0.2:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-ordered-values@^2.1.0:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/postcss-ordered-values/-/postcss-ordered-values-2.2.3.tgz#eec6c2a67b6c412a8db2042e77fe8da43f95c11d"
+  integrity sha1-7sbCpntsQSqNsgQud/6NpD+VwR0=
+  dependencies:
+    postcss "^5.0.4"
+    postcss-value-parser "^3.0.1"
+
 postcss-ordered-values@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/postcss-ordered-values/-/postcss-ordered-values-4.1.2.tgz#0cf75c820ec7d5c4d280189559e0b571ebac0eee"
@@ -11111,6 +11507,21 @@ postcss-ordered-values@^4.1.2:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-reduce-idents@^2.2.2:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-idents/-/postcss-reduce-idents-2.4.0.tgz#c2c6d20cc958284f6abfbe63f7609bf409059ad3"
+  integrity sha1-wsbSDMlYKE9qv75j92Cb9AkFmtM=
+  dependencies:
+    postcss "^5.0.4"
+    postcss-value-parser "^3.0.2"
+
+postcss-reduce-initial@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-initial/-/postcss-reduce-initial-1.0.1.tgz#68f80695f045d08263a879ad240df8dd64f644ea"
+  integrity sha1-aPgGlfBF0IJjqHmtJA343WT2ROo=
+  dependencies:
+    postcss "^5.0.4"
+
 postcss-reduce-initial@^4.0.3:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/postcss-reduce-initial/-/postcss-reduce-initial-4.0.3.tgz#7fd42ebea5e9c814609639e2c2e84ae270ba48df"
@@ -11121,6 +11532,15 @@ postcss-reduce-initial@^4.0.3:
     has "^1.0.0"
     postcss "^7.0.0"
 
+postcss-reduce-transforms@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-transforms/-/postcss-reduce-transforms-1.0.4.tgz#ff76f4d8212437b31c298a42d2e1444025771ae1"
+  integrity sha1-/3b02CEkN7McKYpC0uFEQCV3GuE=
+  dependencies:
+    has "^1.0.1"
+    postcss "^5.0.8"
+    postcss-value-parser "^3.0.1"
+
 postcss-reduce-transforms@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-reduce-transforms/-/postcss-reduce-transforms-4.0.2.tgz#17efa405eacc6e07be3414a5ca2d1074681d4e29"
@@ -11131,6 +11551,15 @@ postcss-reduce-transforms@^4.0.2:
     postcss "^7.0.0"
     postcss-value-parser "^3.0.0"
 
+postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.2:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-2.2.3.tgz#f9437788606c3c9acee16ffe8d8b16297f27bb90"
+  integrity sha1-+UN3iGBsPJrO4W/+jYsWKX8nu5A=
+  dependencies:
+    flatten "^1.0.2"
+    indexes-of "^1.0.1"
+    uniq "^1.0.1"
+
 postcss-selector-parser@^3.0.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-3.1.1.tgz#4f875f4afb0c96573d5cf4d74011aee250a7e865"
@@ -11158,6 +11587,16 @@ postcss-selector-parser@^6.0.0:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
+postcss-svgo@^2.1.1:
+  version "2.1.6"
+  resolved "https://registry.yarnpkg.com/postcss-svgo/-/postcss-svgo-2.1.6.tgz#b6df18aa613b666e133f08adb5219c2684ac108d"
+  integrity sha1-tt8YqmE7Zm4TPwittSGcJoSsEI0=
+  dependencies:
+    is-svg "^2.0.0"
+    postcss "^5.0.14"
+    postcss-value-parser "^3.2.3"
+    svgo "^0.7.0"
+
 postcss-svgo@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/postcss-svgo/-/postcss-svgo-4.0.2.tgz#17b997bc711b333bab143aaed3b8d3d6e3d38258"
@@ -11168,6 +11607,15 @@ postcss-svgo@^4.0.2:
     postcss-value-parser "^3.0.0"
     svgo "^1.0.0"
 
+postcss-unique-selectors@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-unique-selectors/-/postcss-unique-selectors-2.0.2.tgz#981d57d29ddcb33e7b1dfe1fd43b8649f933ca1d"
+  integrity sha1-mB1X0p3csz57Hf4f1DuGSfkzyh0=
+  dependencies:
+    alphanum-sort "^1.0.1"
+    postcss "^5.0.4"
+    uniqs "^2.0.0"
+
 postcss-unique-selectors@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/postcss-unique-selectors/-/postcss-unique-selectors-4.0.1.tgz#9446911f3289bfd64c6d680f073c03b1f9ee4bac"
@@ -11177,11 +11625,30 @@ postcss-unique-selectors@^4.0.1:
     postcss "^7.0.0"
     uniqs "^2.0.0"
 
-postcss-value-parser@^3.0.0, postcss-value-parser@^3.3.0, postcss-value-parser@^3.3.1:
+postcss-value-parser@^3.0.0, postcss-value-parser@^3.0.1, postcss-value-parser@^3.0.2, postcss-value-parser@^3.1.1, postcss-value-parser@^3.1.2, postcss-value-parser@^3.2.3, postcss-value-parser@^3.3.0, postcss-value-parser@^3.3.1:
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-3.3.1.tgz#9ff822547e2893213cf1c30efa51ac5fd1ba8281"
   integrity sha512-pISE66AbVkp4fDQ7VHBwRNXzAAKJjw4Vw7nWI/+Q3vuly7SNfgYXvm6i5IgFylHGK5sP/xHAbB7N49OS4gWNyQ==
 
+postcss-zindex@^2.0.1:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/postcss-zindex/-/postcss-zindex-2.2.0.tgz#d2109ddc055b91af67fc4cb3b025946639d2af22"
+  integrity sha1-0hCd3AVbka9n/EyzsCWUZjnSryI=
+  dependencies:
+    has "^1.0.1"
+    postcss "^5.0.4"
+    uniqs "^2.0.0"
+
+postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0.14, postcss@^5.0.16, postcss@^5.0.2, postcss@^5.0.4, postcss@^5.0.5, postcss@^5.0.8, postcss@^5.2.16:
+  version "5.2.18"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-5.2.18.tgz#badfa1497d46244f6390f58b319830d9107853c5"
+  integrity sha512-zrUjRRe1bpXKsX1qAJNJjqZViErVuyEkMTRrwu4ud4sbTtIBRmtaYDrHmcGgmrbsW3MHfmtIf+vJumgQn+PrXg==
+  dependencies:
+    chalk "^1.1.3"
+    js-base64 "^2.1.9"
+    source-map "^0.5.6"
+    supports-color "^3.2.3"
+
 postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.16:
   version "7.0.17"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.17.tgz#4da1bdff5322d4a0acaab4d87f3e782436bad31f"
@@ -11973,6 +12440,22 @@ redent@^2.0.0:
     indent-string "^3.0.0"
     strip-indent "^2.0.0"
 
+reduce-css-calc@^1.2.6:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/reduce-css-calc/-/reduce-css-calc-1.3.0.tgz#747c914e049614a4c9cfbba629871ad1d2927716"
+  integrity sha1-dHyRTgSWFKTJz7umKYca0dKSdxY=
+  dependencies:
+    balanced-match "^0.4.2"
+    math-expression-evaluator "^1.2.14"
+    reduce-function-call "^1.0.1"
+
+reduce-function-call@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/reduce-function-call/-/reduce-function-call-1.0.2.tgz#5a200bf92e0e37751752fe45b0ab330fd4b6be99"
+  integrity sha1-WiAL+S4ON3UXUv5FsKszD9S2vpk=
+  dependencies:
+    balanced-match "^0.4.2"
+
 reduce@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/reduce/-/reduce-1.0.2.tgz#0cd680ad3ffe0b060e57a5c68bdfce37168d361b"
@@ -12472,7 +12955,7 @@ sane@^4.0.3:
     minimist "^1.1.1"
     walker "~1.0.5"
 
-sax@^1.2.4, sax@~1.2.4:
+sax@^1.2.4, sax@~1.2.1, sax@~1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
@@ -13338,6 +13821,13 @@ supports-color@^2.0.0:
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
   integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
 
+supports-color@^3.2.3:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.2.3.tgz#65ac0504b3954171d8a64946b2ae3cbb8a5f54f6"
+  integrity sha1-ZawFBLOVQXHYpklGsq48u4pfVPY=
+  dependencies:
+    has-flag "^1.0.0"
+
 supports-color@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
@@ -13352,6 +13842,19 @@ supports-color@^6.1.0:
   dependencies:
     has-flag "^3.0.0"
 
+svgo@^0.7.0:
+  version "0.7.2"
+  resolved "https://registry.yarnpkg.com/svgo/-/svgo-0.7.2.tgz#9f5772413952135c6fefbf40afe6a4faa88b4bb5"
+  integrity sha1-n1dyQTlSE1xv779Ar+ak+qiLS7U=
+  dependencies:
+    coa "~1.0.1"
+    colors "~1.1.2"
+    csso "~2.3.1"
+    js-yaml "~3.7.0"
+    mkdirp "~0.5.1"
+    sax "~1.2.1"
+    whet.extend "~0.9.9"
+
 svgo@^1.0.0, svgo@^1.0.5:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/svgo/-/svgo-1.2.2.tgz#0253d34eccf2aed4ad4f283e11ee75198f9d7316"
@@ -14531,6 +15034,11 @@ whatwg-url@^7.0.0:
     tr46 "^1.0.1"
     webidl-conversions "^4.0.2"
 
+whet.extend@~0.9.9:
+  version "0.9.9"
+  resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"
+  integrity sha1-+HfVv2SMl+WqVC+twW1qJZucEaE=
+
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"