Merge pull request #11 from mikeantonelli/dependabot/npm_and_yarn/webpack-dev-server-3.1.11

Bump webpack-dev-server from 2.11.2 to 3.1.11

Author: mikeantonelli

package.json

@@ -11,6 +11,6 @@
     "react-on-rails": "11.0.7"
   },
   "devDependencies": {
-    "webpack-dev-server": "2.11.2"
+    "webpack-dev-server": "3.1.11"
   }
 }