Merge pull request #165 from c-base/greenkeeper/mocha-5.0.0

Update mocha to the latest version 🚀

Author: bergie

package.json

@@ -32,7 +32,7 @@
     "grunt-string-replace": "^1.3.1",
     "microflo-core": "^0.6.0",
     "microflo-arduino": "^0.6.0",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.0",
     "noflo-nodejs": "^0.9.0"
   },
   "scripts": {