Change webpack-dev-server repository (#4061)

package.json

@@ -128,7 +128,7 @@
     "react-intl-translations-manager": "^5.0.0",
     "react-test-renderer": "^15.6.1",
     "sinon": "^2.3.5",
-    "webpack-dev-server": "lencioni/webpack-dev-server#patch-1",
+    "webpack-dev-server": "webpack/webpack-dev-server#047a5954398e67b0a17e6be7d5877d9f55f40cba",
     "yargs": "^8.0.2"
   },
   "optionalDependencies": {