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

Closes #20

Author: greenkeeper[bot]

package.json

@@ -22,7 +22,7 @@
     "karma-firefox-launcher": "^1.0.0",
     "karma-ie-launcher": "^1.0.0",
     "karma-jasmine": "^1.0.2",
-    "karma-mocha": "^1.2.0",
+    "karma-mocha": "^2.0.1",
     "karma-opera-launcher": "^1.0.0",
     "karma-safari-launcher": "^1.0.0",
     "karma-sauce-launcher": "^1.0.0",