Merge pull request #26 from joelmukuthu/greenkeeper/mocha-6.0.0

Update mocha to the latest version 🚀

Author: joelmukuthu

package.json

@@ -35,7 +35,7 @@
     "jsdom": "^13.0.0",
     "jsdom-global": "^3.0.2",
     "load-grunt-tasks": "^4.0.0",
-    "mocha": "^5.0.0",
+    "mocha": "^6.0.0",
     "nyc": "^13.2.0",
     "unexpected": "^11.0.1"
   },