chore(package): update karma-mocha to version 2.0.0

Author: greenkeeper[bot]

package.json

@@ -69,7 +69,7 @@
     "imports-loader": "0.7.0",
     "karma": "1.3.0",
     "karma-coverage": "1.1.1",
-    "karma-mocha": "1.3.0",
+    "karma-mocha": "2.0.0",
     "karma-mocha-reporter": "2.2.1",
     "karma-phantomjs-launcher": "1.0.2",
     "karma-sauce-launcher": "1.1.0",