Upgrade Webpack to v3.x

Author: bkrem

package.json

@@ -80,7 +80,7 @@
     "regenerator-runtime": "^0.10.5",
     "rimraf": "^2.6.1",
     "style-loader": "^0.17.0",
-    "webpack": "2.4.1",
+    "webpack": "^3.5.6",
     "yargs": "7.1.0"
   },
   "repository": {