chore(package): update webpack to version 3.0.0-rc.1

package.json

@@ -49,7 +49,7 @@
     "mocha": "~3.4.0",
     "nyc": "~11.0.1",
     "pre-commit": "~1.2.0",
-    "webpack": "~2.6.0",
+    "webpack": "~3.0.0-rc.1",
     "zuul": "~3.11.1"
   }
 }