Merge pull request #31 from testingbot/greenkeeper/mocha-5.0.0

Update mocha to the latest version 🚀

Author: jochen-testingbot

package.json

@@ -16,8 +16,8 @@
     "babel-cli": "^6.0.0",
     "babel-preset-env" : "^1.6.1",
     "eslint": "^4.1.0",
-    "mocha": "^3.2.0",
-    "mocha": "^4.0.1",
+    "mocha": "^5.0.0",
+    "mocha": "^5.0.0",
     "mocha-junit-reporter": "^1.15.0"
   },
   "engines": {