chore(package): update karma-webpack to version 2.0.3

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -51,7 +51,7 @@
     "karma-mocha-reporter": "2.2.2",
     "karma-remap-coverage": "0.1.4",
     "karma-sourcemap-loader": "0.3.7",
-    "karma-webpack": "2.0.2",
+    "karma-webpack": "2.0.3",
     "remap-istanbul": "0.9.1",
     "rimraf": "2.6.1",
     "rxjs": "5.2.0",