chore(package): update webpack to version 3.4.1

Author: tiagoschenkel

package.json

@@ -79,7 +79,7 @@
     "tslint": "^5.5.0",
     "typescript": "^2.4.2",
     "typescript-formatter": "^5.2.0",
-    "webpack": "^3.3.0",
+    "webpack": "^3.4.1",
     "webpack-dev-server": "^2.6.1"
   },
   "peerDependencies": {