Merge pull request #4 from nyan-matt/dependabot/npm_and_yarn/webpack-dev-server-3.1.11

Bump webpack-dev-server from 1.16.2 to 3.1.11

Author: nyan-matt

package.json

@@ -68,7 +68,7 @@
     "stylus-loader": "^2.3.1",
     "url-loader": "0.5.7",
     "webpack": "1.14.0",
-    "webpack-dev-server": "1.16.2",
+    "webpack-dev-server": "3.1.11",
     "webpack-manifest-plugin": "1.1.0",
     "whatwg-fetch": "1.0.0"
   },