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

Closes #231

Author: greenkeeper[bot]

package.json

@@ -100,7 +100,7 @@
     "json-loader": "0.5.7",
     "karma": "1.7.1",
     "karma-coverage": "1.1.1",
-    "karma-mocha": "1.3.0",
+    "karma-mocha": "2.0.1",
     "karma-mocha-reporter": "2.2.5",
     "karma-phantomjs-launcher": "1.0.4",
     "karma-sauce-launcher": "1.2.0",