Merge pull request #5 from e-e-e/greenkeeper/mocha-5.0.0

Update mocha to the latest version 🚀

Author: e-e-e

package.json

@@ -21,7 +21,7 @@
     "chai": "^4.1.2",
     "coveralls": "^3.0.0",
     "istanbul": "^0.4.5",
-    "mocha": "^4.0.1",
+    "mocha": "^5.0.0",
     "random-access-memory": "^2.4.0",
     "standard": "^10.0.3"
   },