Fix broken CSS reload due to webpack upgrade (#4250)

package.json

@@ -50,7 +50,7 @@
     "es6-symbol": "^3.1.1",
     "escape-html": "^1.0.3",
     "express": "^4.15.2",
-    "extract-text-webpack-plugin": "^3.0.0",
+    "extract-text-webpack-plugin": "^2.1.2",
     "file-loader": "^0.11.2",
     "font-awesome": "^4.7.0",
     "glob": "^7.1.1",
@@ -112,7 +112,7 @@
     "tiny-queue": "^0.2.1",
     "uuid": "^3.1.0",
     "uws": "^8.14.0",
-    "webpack": "^3.2.0",
+    "webpack": "^3.0.0",
     "webpack-bundle-analyzer": "^2.8.2",
     "webpack-manifest-plugin": "^1.1.2",
     "webpack-merge": "^4.1.0",

yarn.lock

@@ -415,7 +415,7 @@ async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
-async@^2.1.2, async@^2.1.4, async@^2.1.5, async@^2.4.1:
+async@^2.1.2, async@^2.1.4, async@^2.1.5:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/async/-/async-2.5.0.tgz#843190fd6b7357a0b9e1c956edddd5ec8462b54d"
   dependencies:
@@ -1657,7 +1657,7 @@ cheerio@^0.22.0:
     lodash.reject "^4.4.0"
     lodash.some "^4.4.0"
 
-chokidar@^1.4.3, chokidar@^1.6.0:
+chokidar@^1.4.3, chokidar@^1.6.0, chokidar@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
   dependencies:
@@ -2868,12 +2868,12 @@ extglob@^0.3.1:
   dependencies:
     is-extglob "^1.0.0"
 
-extract-text-webpack-plugin@^3.0.0:
+extract-text-webpack-plugin@^2.1.2:
-  version "3.0.0"
+  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-3.0.0.tgz#90caa7907bc449f335005e3ac7532b41b00de612"
+  resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-2.1.2.tgz#756ef4efa8155c3681833fbc34da53b941746d6c"
   dependencies:
-    async "^2.4.1"
+    async "^2.1.2"
-    loader-utils "^1.1.0"
+    loader-utils "^1.0.2"
     schema-utils "^0.3.0"
     webpack-sources "^1.0.1"
 
@@ -7328,6 +7328,14 @@ watchpack@^1.3.1:
     chokidar "^1.4.3"
     graceful-fs "^4.1.2"
 
+watchpack@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.4.0.tgz#4a1472bcbb952bd0a9bb4036801f954dfb39faac"
+  dependencies:
+    async "^2.1.2"
+    chokidar "^1.7.0"
+    graceful-fs "^4.1.2"
+
 wbuf@^1.1.0, wbuf@^1.7.2:
   version "1.7.2"
   resolved "https://registry.yarnpkg.com/wbuf/-/wbuf-1.7.2.tgz#d697b99f1f59512df2751be42769c1580b5801fe"
@@ -7425,7 +7433,7 @@ webpack-sources@^1.0.1:
     source-list-map "^2.0.0"
     source-map "~0.5.3"
 
-"webpack@^2.5.1 || ^3.0.0", webpack@^3.2.0:
+"webpack@^2.5.1 || ^3.0.0":
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.2.0.tgz#8b0cae0e1a9fd76bfbf0eab61a8c2ada848c312f"
   dependencies:
@@ -7452,6 +7460,33 @@ webpack-sources@^1.0.1:
     webpack-sources "^1.0.1"
     yargs "^6.0.0"
 
+webpack@^3.0.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.3.0.tgz#ce2f9e076566aba91f74887133a883fd7da187bc"
+  dependencies:
+    acorn "^5.0.0"
+    acorn-dynamic-import "^2.0.0"
+    ajv "^5.1.5"
+    ajv-keywords "^2.0.0"
+    async "^2.1.2"
+    enhanced-resolve "^3.3.0"
+    escope "^3.6.0"
+    interpret "^1.0.0"
+    json-loader "^0.5.4"
+    json5 "^0.5.1"
+    loader-runner "^2.3.0"
+    loader-utils "^1.1.0"
+    memory-fs "~0.4.1"
+    mkdirp "~0.5.0"
+    node-libs-browser "^2.0.0"
+    source-map "^0.5.3"
+    supports-color "^3.1.0"
+    tapable "~0.2.5"
+    uglifyjs-webpack-plugin "^0.4.6"
+    watchpack "^1.4.0"
+    webpack-sources "^1.0.1"
+    yargs "^6.0.0"
+
 websocket-driver@>=0.5.1:
   version "0.6.5"
   resolved "https://registry.yarnpkg.com/websocket-driver/-/websocket-driver-0.6.5.tgz#5cb2556ceb85f4373c6d8238aa691c8454e13a36"