chore(package): update karma to version 2.0.5

Closes #29

Author: greenkeeper[bot]

package.json

@@ -69,7 +69,7 @@
     "ghooks": "1.3.2",
     "imports-loader": "0.6.5",
     "just-wait": "1.0.9",
-    "karma": "1.3.0",
+    "karma": "2.0.5",
     "karma-coverage": "1.1.1",
     "karma-mocha": "1.3.0",
     "karma-mocha-reporter": "2.2.1",