chore(package): update karma-webpack to version 2.0.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -39,7 +39,7 @@
     "karma-mocha": "^1.1.1",
     "karma-mocha-reporter": "^2.1.0",
     "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^1.7.0",
+    "karma-webpack": "^2.0.1",
     "mocha": "^3.0.0",
     "pretty-bytes": "^4.0.2",
     "react": "^15.4.1 || ^0.14.7",