diff --git a/app/assets/javascripts/commons/polyfills.js b/app/assets/javascripts/commons/polyfills.js
index cb5a9a9f6b5..ff9e4485916 100644
--- a/app/assets/javascripts/commons/polyfills.js
+++ b/app/assets/javascripts/commons/polyfills.js
@@ -10,6 +10,7 @@ import 'core-js/fn/string/from-code-point';
 import 'core-js/fn/symbol';
 
 // Browser polyfills
+import 'classlist-polyfill';
 import './polyfills/custom_event';
 import './polyfills/element';
 import './polyfills/event';
diff --git a/package.json b/package.json
index 8eb38f28cee..1937acb4be4 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
     "blackst0ne-mermaid": "^7.1.0-fixed",
     "bootstrap-sass": "^3.3.6",
     "brace-expansion": "^1.1.8",
+    "classlist-polyfill": "^1.2.0",
     "compression-webpack-plugin": "^1.0.0",
     "copy-webpack-plugin": "^4.0.1",
     "core-js": "^2.4.1",
diff --git a/yarn.lock b/yarn.lock
index 600e8e75ef6..7628e6dcd91 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -279,18 +279,12 @@ async@1.x, async@^1.4.0, async@^1.4.2, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
-async@2.4.1:
+async@2.4.1, async@^2.1.2, async@^2.1.4:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.4.1.tgz#62a56b279c98a11d0987096a01cc3eeb8eb7bbd7"
   dependencies:
     lodash "^4.14.0"
 
-async@^2.1.2, async@^2.1.4:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.5.0.tgz#843190fd6b7357a0b9e1c956edddd5ec8462b54d"
-  dependencies:
-    lodash "^4.14.0"
-
 async@~0.9.0:
   version "0.9.2"
   resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
@@ -335,15 +329,7 @@ axios@^0.17.1:
     follow-redirects "^1.2.5"
     is-buffer "^1.1.5"
 
-babel-code-frame@^6.11.0, babel-code-frame@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.22.0.tgz#027620bee567a88c32561574e7fd0801d33118e4"
-  dependencies:
-    chalk "^1.1.0"
-    esutils "^2.0.2"
-    js-tokens "^3.0.0"
-
-babel-code-frame@^6.16.0, babel-code-frame@^6.26.0:
+babel-code-frame@^6.11.0, babel-code-frame@^6.16.0, babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
   dependencies:
@@ -384,20 +370,7 @@ babel-eslint@^8.0.2:
     "@babel/types" "^7.0.0-beta.31"
     babylon "^7.0.0-beta.31"
 
-babel-generator@^6.18.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.23.0.tgz#6b8edab956ef3116f79d8c84c5a3c05f32a74bc5"
-  dependencies:
-    babel-messages "^6.23.0"
-    babel-runtime "^6.22.0"
-    babel-types "^6.23.0"
-    detect-indent "^4.0.0"
-    jsesc "^1.3.0"
-    lodash "^4.2.0"
-    source-map "^0.5.0"
-    trim-right "^1.0.1"
-
-babel-generator@^6.26.0:
+babel-generator@^6.18.0, babel-generator@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.0.tgz#ac1ae20070b79f6e3ca1d3269613053774f20dc5"
   dependencies:
@@ -907,31 +880,14 @@ babel-register@^6.26.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.15"
 
-babel-runtime@^6.18.0, babel-runtime@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.22.0.tgz#1cf8b4ac67c77a4ddb0db2ae1f74de52ac4ca611"
-  dependencies:
-    core-js "^2.4.0"
-    regenerator-runtime "^0.10.0"
-
-babel-runtime@^6.26.0:
+babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   dependencies:
     core-js "^2.4.0"
     regenerator-runtime "^0.11.0"
 
-babel-template@^6.16.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.23.0.tgz#04d4f270adbb3aa704a8143ae26faa529238e638"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-traverse "^6.23.0"
-    babel-types "^6.23.0"
-    babylon "^6.11.0"
-    lodash "^4.2.0"
-
-babel-template@^6.24.1, babel-template@^6.26.0:
+babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
   dependencies:
@@ -941,21 +897,7 @@ babel-template@^6.24.1, babel-template@^6.26.0:
     babylon "^6.18.0"
     lodash "^4.17.4"
 
-babel-traverse@^6.18.0, babel-traverse@^6.23.0:
-  version "6.23.1"
-  resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.23.1.tgz#d3cb59010ecd06a97d81310065f966b699e14f48"
-  dependencies:
-    babel-code-frame "^6.22.0"
-    babel-messages "^6.23.0"
-    babel-runtime "^6.22.0"
-    babel-types "^6.23.0"
-    babylon "^6.15.0"
-    debug "^2.2.0"
-    globals "^9.0.0"
-    invariant "^2.2.0"
-    lodash "^4.2.0"
-
-babel-traverse@^6.24.1, babel-traverse@^6.26.0:
+babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
   dependencies:
@@ -969,16 +911,7 @@ babel-traverse@^6.24.1, babel-traverse@^6.26.0:
     invariant "^2.2.2"
     lodash "^4.17.4"
 
-babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.23.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.23.0.tgz#bb17179d7538bad38cd0c9e115d340f77e7e9acf"
-  dependencies:
-    babel-runtime "^6.22.0"
-    esutils "^2.0.2"
-    lodash "^4.2.0"
-    to-fast-properties "^1.0.1"
-
-babel-types@^6.24.1, babel-types@^6.26.0:
+babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
   dependencies:
@@ -991,10 +924,6 @@ babylon@7.0.0-beta.32, babylon@^7.0.0-beta.31:
   version "7.0.0-beta.32"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.32.tgz#e9033cb077f64d6895f4125968b37dc0a8c3bc6e"
 
-babylon@^6.11.0, babylon@^6.13.0, babylon@^6.15.0:
-  version "6.16.1"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.16.1.tgz#30c5a22f481978a9e7f8cdfdf496b11d94b404d3"
-
 babylon@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
@@ -1072,11 +1001,7 @@ bluebird@^2.10.2:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-2.11.0.tgz#534b9033c022c9579c56ba3b3e5a5caafbb650e1"
 
-bluebird@^3.1.1:
-  version "3.4.7"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
-
-bluebird@^3.3.0:
+bluebird@^3.1.1, bluebird@^3.3.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.0.tgz#791420d7f551eea2897453a8a77653f96606d67c"
 
@@ -1207,10 +1132,6 @@ buffer-indexof@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/buffer-indexof/-/buffer-indexof-1.1.0.tgz#f54f647c4f4e25228baa656a2e57e43d5f270982"
 
-buffer-shims@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/buffer-shims/-/buffer-shims-1.0.0.tgz#9978ce317388c649ad8793028c3477ef044a8b51"
-
 buffer-xor@^1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
@@ -1300,7 +1221,7 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -1310,7 +1231,7 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.3.0:
+chalk@^2.0.0, chalk@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.0.tgz#b5ea48efc9c1793dccc9b4767c93914d3f2d52ba"
   dependencies:
@@ -1349,6 +1270,10 @@ clap@^1.0.9:
   dependencies:
     chalk "^1.1.3"
 
+classlist-polyfill@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/classlist-polyfill/-/classlist-polyfill-1.2.0.tgz#935bc2dfd9458a876b279617514638bcaa964a2e"
+
 cli-cursor@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
@@ -1401,13 +1326,7 @@ 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"
 
-color-convert@^1.3.0:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"
-  dependencies:
-    color-name "^1.1.1"
-
-color-convert@^1.9.0:
+color-convert@^1.3.0, color-convert@^1.9.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
   dependencies:
@@ -1601,15 +1520,11 @@ copy-webpack-plugin@^4.0.1:
     minimatch "^3.0.0"
     node-dir "^0.1.10"
 
-core-js@^2.2.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.0.tgz#569c050918be6486b3837552028ae0466b717086"
-
-core-js@^2.4.0, core-js@^2.4.1:
+core-js@^2.2.0, core-js@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
 
-core-js@^2.5.0:
+core-js@^2.4.0, core-js@^2.5.0:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.1.tgz#ae6874dc66937789b80754ff5428df66819ca50b"
 
@@ -1859,7 +1774,7 @@ debug@2.6.8, debug@^2.1.0, debug@^2.1.1, debug@^2.2.0, debug@^2.6.6, debug@^2.6.
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.0:
+debug@^3.0.1, debug@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   dependencies:
@@ -2246,11 +2161,7 @@ es6-map@^0.1.3:
     es6-symbol "~3.1.1"
     event-emitter "~0.3.5"
 
-es6-promise@^3.0.2:
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-3.3.1.tgz#a08cdde84ccdbf34d027a1451bc91d4bcd28a613"
-
-es6-promise@~3.0.2:
+es6-promise@^3.0.2, es6-promise@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-3.0.2.tgz#010d5858423a5f118979665f46486a95c6ee2bb6"
 
@@ -2431,10 +2342,6 @@ esprima@2.7.x, esprima@^2.6.0, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
-esprima@^3.1.1:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
-
 esprima@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
@@ -2835,11 +2742,11 @@ fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
     mkdirp ">=0.5 0"
     rimraf "2"
 
-function-bind@^1.0.2:
+function-bind@^1.0.2, function-bind@~1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.0.tgz#16176714c801798e4e8f2cf7f7529467bb4a5771"
 
-function-bind@^1.1.1, function-bind@~1.1.0:
+function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
 
@@ -2921,18 +2828,7 @@ glob@^6.0.4:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.1.1, glob@~7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.4"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.0.3, glob@^7.0.5:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
   dependencies:
@@ -2943,11 +2839,22 @@ glob@^7.0.3, glob@^7.0.5:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+glob@~7.1.2:
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 globals@^10.0.0:
   version "10.4.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-10.4.0.tgz#5c477388b128a9e4c5c5d01c7a2aca68c68b2da7"
 
-globals@^9.0.0, globals@^9.14.0, globals@^9.18.0:
+globals@^9.14.0, globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
 
@@ -3152,14 +3059,10 @@ html-comment-regex@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/html-comment-regex/-/html-comment-regex-1.1.1.tgz#668b93776eaae55ebde8f3ad464b307a4963625e"
 
-html-entities@1.2.0:
+html-entities@1.2.0, html-entities@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.2.0.tgz#41948caf85ce82fed36e4e6a0ed371a6664379e2"
 
-html-entities@^1.2.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.2.1.tgz#0df29351f0721163515dfb9e5543e5f6eed5162f"
-
 htmlparser2@^3.8.2:
   version "3.9.2"
   resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.9.2.tgz#1bdf87acca0f3f9e53fa4fcceb0f4b4cbb00b338"
@@ -3565,10 +3468,6 @@ isexe@^1.1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-1.1.2.tgz#36f3e22e60750920f5e7241a476a8c6a42275ad0"
 
-isexe@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
-
 isobject@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-2.1.0.tgz#f065561096a3f1da2ef46272f815c840d87e0c89"
@@ -3595,11 +3494,7 @@ istanbul-api@^1.1.1:
     mkdirp "^0.5.1"
     once "^1.4.0"
 
-istanbul-lib-coverage@^1.0.0, istanbul-lib-coverage@^1.0.0-alpha, istanbul-lib-coverage@^1.0.0-alpha.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.0.1.tgz#f263efb519c051c5f1f3343034fc40e7b43ff212"
-
-istanbul-lib-coverage@^1.1.1:
+istanbul-lib-coverage@^1.0.0, istanbul-lib-coverage@^1.0.0-alpha, istanbul-lib-coverage@^1.0.0-alpha.0, istanbul-lib-coverage@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.1.tgz#73bfb998885299415c93d38a3e9adf784a77a9da"
 
@@ -3609,19 +3504,7 @@ istanbul-lib-hook@^1.0.0:
   dependencies:
     append-transform "^0.4.0"
 
-istanbul-lib-instrument@^1.3.0:
-  version "1.4.2"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.4.2.tgz#0e2fdfac93c1dabf2e31578637dc78a19089f43e"
-  dependencies:
-    babel-generator "^6.18.0"
-    babel-template "^6.16.0"
-    babel-traverse "^6.18.0"
-    babel-types "^6.18.0"
-    babylon "^6.13.0"
-    istanbul-lib-coverage "^1.0.0"
-    semver "^5.3.0"
-
-istanbul-lib-instrument@^1.7.5:
+istanbul-lib-instrument@^1.3.0, istanbul-lib-instrument@^1.7.5:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.9.1.tgz#250b30b3531e5d3251299fdd64b0b2c9db6b558e"
   dependencies:
@@ -3715,22 +3598,11 @@ js-cookie@^2.1.3:
   version "2.1.3"
   resolved "https://registry.yarnpkg.com/js-cookie/-/js-cookie-2.1.3.tgz#48071625217ac9ecfab8c343a13d42ec09ff0526"
 
-js-tokens@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
-
-js-tokens@^3.0.2:
+js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@3.x, js-yaml@^3.4.3, js-yaml@^3.7.0:
-  version "3.8.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.1.tgz#782ba50200be7b9e5a8537001b7804db3ad02628"
-  dependencies:
-    argparse "^1.0.7"
-    esprima "^3.1.1"
-
-js-yaml@^3.5.1:
+js-yaml@3.x, js-yaml@^3.4.3, js-yaml@^3.5.1, js-yaml@^3.7.0:
   version "3.9.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.9.1.tgz#08775cebdfdd359209f0d2acd383c8f86a6904a0"
   dependencies:
@@ -4159,14 +4031,7 @@ lru-cache@2.2.x:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.2.4.tgz#6c658619becf14031d0d0b594b16042ce4dc063d"
 
-lru-cache@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.0.2.tgz#1d17679c069cda5d040991a09dbc2c0db377e55e"
-  dependencies:
-    pseudomap "^1.0.1"
-    yallist "^2.0.0"
-
-lru-cache@^4.1.1:
+lru-cache@^4.0.1, lru-cache@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
   dependencies:
@@ -4268,7 +4133,7 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-"mime-db@>= 1.29.0 < 2", mime-db@~1.29.0:
+"mime-db@>= 1.29.0 < 2":
   version "1.29.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.29.0.tgz#48d26d235589651704ac5916ca06001914266878"
 
@@ -4276,13 +4141,7 @@ mime-db@~1.27.0:
   version "1.27.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.27.0.tgz#820f572296bbd20ec25ed55e5b5de869e5436eb1"
 
-mime-types@^2.1.12, mime-types@~2.1.7:
-  version "2.1.16"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.16.tgz#2b858a52e5ecd516db897ac2be87487830698e23"
-  dependencies:
-    mime-db "~1.29.0"
-
-mime-types@~2.1.11, mime-types@~2.1.15:
+mime-types@^2.1.12, mime-types@~2.1.11, mime-types@~2.1.15, mime-types@~2.1.7:
   version "2.1.15"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.15.tgz#a4ebf5064094569237b8cf70046776d09fc92aed"
   dependencies:
@@ -4304,18 +4163,18 @@ minimalistic-assert@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.0.tgz#702be2dda6b37f4836bcb3f5db56641b64a1d3d3"
 
-"minimatch@2 || 3", minimatch@3.0.3, minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
-  dependencies:
-    brace-expansion "^1.0.0"
-
-minimatch@^3.0.4:
+"minimatch@2 || 3", minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
     brace-expansion "^1.1.7"
 
+minimatch@3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
+  dependencies:
+    brace-expansion "^1.0.0"
+
 minimist@0.0.8, minimist@~0.0.1:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
@@ -4330,11 +4189,7 @@ mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkd
   dependencies:
     minimist "0.0.8"
 
-moment@2.x:
-  version "2.17.1"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.17.1.tgz#fed9506063f36b10f066c8b59a144d7faebe1d82"
-
-moment@^2.18.1:
+moment@2.x, moment@^2.18.1:
   version "2.19.2"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.19.2.tgz#8a7f774c95a64550b4c7ebd496683908f9419dbe"
 
@@ -4510,16 +4365,7 @@ nopt@~1.0.10:
   dependencies:
     abbrev "1"
 
-normalize-package-data@^2.3.2:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.3.5.tgz#8d924f142960e1777e7ffe170543631cc7cb02df"
-  dependencies:
-    hosted-git-info "^2.1.4"
-    is-builtin-module "^1.0.0"
-    semver "2 || 3 || 4 || 5"
-    validate-npm-package-license "^3.0.1"
-
-normalize-package-data@^2.3.4:
+normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
   dependencies:
@@ -4694,7 +4540,7 @@ os-locale@^2.0.0:
     lcid "^1.0.0"
     mem "^1.1.0"
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1, os-tmpdir@~1.0.2:
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
@@ -5204,11 +5050,7 @@ prismjs@^1.6.0:
   optionalDependencies:
     clipboard "^1.5.5"
 
-private@^0.1.6:
-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
-
-private@^0.1.7:
+private@^0.1.6, private@^0.1.7:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
 
@@ -5241,7 +5083,7 @@ ps-tree@^1.0.1:
   dependencies:
     event-stream "~3.3.0"
 
-pseudomap@^1.0.1, pseudomap@^1.0.2:
+pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
@@ -5402,7 +5244,7 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-readable-stream@^2.0.0, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.2.2, readable-stream@^2.2.9:
+readable-stream@^2.0.0, readable-stream@^2.0.6, readable-stream@^2.1.0, readable-stream@^2.1.4, readable-stream@^2.2.2, readable-stream@^2.2.9:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   dependencies:
@@ -5425,18 +5267,6 @@ readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable
     string_decoder "~0.10.x"
     util-deprecate "~1.0.1"
 
-readable-stream@^2.1.0:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.2.tgz#a9e6fec3c7dda85f8bb1b3ba7028604556fc825e"
-  dependencies:
-    buffer-shims "^1.0.0"
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    string_decoder "~0.10.x"
-    util-deprecate "~1.0.1"
-
 readable-stream@~1.0.2:
   version "1.0.34"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
@@ -5500,10 +5330,6 @@ regenerate@^1.2.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.2.tgz#d1941c67bad437e1be76433add5b385f95b19260"
 
-regenerator-runtime@^0.10.0:
-  version "0.10.1"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.1.tgz#257f41961ce44558b18f7814af48c17559f9faeb"
-
 regenerator-runtime@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.0.tgz#7e54fe5b5ccd5d6624ea6255c3473be090b802e1"
@@ -5641,11 +5467,7 @@ resolve@1.1.x:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
 
-resolve@^1.1.6, resolve@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.2.0.tgz#9589c3f2f6149d1417a40becc1663db6ec6bc26c"
-
-resolve@^1.4.0:
+resolve@^1.1.6, resolve@^1.2.0, resolve@^1.4.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
   dependencies:
@@ -5732,14 +5554,10 @@ semver-diff@^2.0.0:
   dependencies:
     semver "^5.0.3"
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0:
+"semver@2 || 3 || 4 || 5", semver@^5.0.3, semver@^5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
 
-semver@^5.0.3:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
-
 semver@~4.3.3:
   version "4.3.6"
   resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.6.tgz#300bc6e0e86374f7ba61068b5b1ecd57fc6532da"
@@ -5938,7 +5756,7 @@ source-map-support@^0.4.15:
   dependencies:
     source-map "^0.5.6"
 
-source-map@0.5.x, source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.3:
+source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.3:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
@@ -6267,10 +6085,6 @@ thunky@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/thunky/-/thunky-0.1.0.tgz#bf30146824e2b6e67b0f2d7a4ac8beb26908684e"
 
-time-stamp@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.0.0.tgz#95c6a44530e15ba8d6f4a3ecb8c3a3fac46da357"
-
 timeago.js@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/timeago.js/-/timeago.js-2.0.5.tgz#730c74fbdb0b0917a553675a4460e3a7f80db86c"
@@ -6299,18 +6113,12 @@ tiny-emitter@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-1.1.0.tgz#ab405a21ffed814a76c19739648093d70654fecb"
 
-tmp@0.0.31:
+tmp@0.0.31, tmp@0.0.x:
   version "0.0.31"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.31.tgz#8f38ab9438e17315e5dbd8b3657e8bfb277ae4a7"
   dependencies:
     os-tmpdir "~1.0.1"
 
-tmp@0.0.x:
-  version "0.0.33"
-  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
-  dependencies:
-    os-tmpdir "~1.0.2"
-
 to-array@0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
@@ -6319,10 +6127,6 @@ to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
 
-to-fast-properties@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.2.tgz#f3f5c0c3ba7299a7ef99427e44633257ade43320"
-
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -6666,7 +6470,7 @@ webpack-bundle-analyzer@^2.8.2:
     opener "^1.4.3"
     ws "^2.3.1"
 
-webpack-dev-middleware@^1.0.11:
+webpack-dev-middleware@^1.0.11, webpack-dev-middleware@^1.11.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.11.0.tgz#09691d0973a30ad1f82ac73a12e2087f0a4754f9"
   dependencies:
@@ -6675,16 +6479,6 @@ webpack-dev-middleware@^1.0.11:
     path-is-absolute "^1.0.0"
     range-parser "^1.0.3"
 
-webpack-dev-middleware@^1.11.0:
-  version "1.12.0"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.0.tgz#d34efefb2edda7e1d3b5dbe07289513219651709"
-  dependencies:
-    memory-fs "~0.4.1"
-    mime "^1.3.4"
-    path-is-absolute "^1.0.0"
-    range-parser "^1.0.3"
-    time-stamp "^2.0.0"
-
 webpack-dev-server@^2.6.1:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-2.7.1.tgz#21580f5a08cd065c71144cf6f61c345bca59a8b8"
@@ -6773,18 +6567,12 @@ which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
 
-which@^1.1.1, which@^1.2.1:
+which@^1.1.1, which@^1.2.1, which@^1.2.9:
   version "1.2.12"
   resolved "https://registry.yarnpkg.com/which/-/which-1.2.12.tgz#de67b5e450269f194909ef23ece4ebe416fa1192"
   dependencies:
     isexe "^1.1.1"
 
-which@^1.2.9:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
-  dependencies:
-    isexe "^2.0.0"
-
 wide-align@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
@@ -6868,7 +6656,7 @@ y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
 
-yallist@^2.0.0, yallist@^2.1.2:
+yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"