chore(package): update mocha to version 3.0.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -22,7 +22,7 @@
     "karma-mocha": "^1.0.1",
     "karma-mocha-own-reporter": "^1.1.2",
     "karma-phantomjs-launcher": "^1.0.0",
-    "mocha": "^2.4.5",
+    "mocha": "^3.0.1",
     "phantomjs-prebuilt": "^2.1.7",
     "standard": "^6.0.8",
     "watchify": "^3.7.0"