chore(package): update mochify to version 6.4.1

Closes #17

Author: greenkeeper[bot]

package.json

@@ -53,7 +53,7 @@
     "http-proxy": "~1.17.0",
     "istanbul": "~0.4.5",
     "mocha": "~3.5.0",
-    "mochify": "~2.18.1",
+    "mochify": "~6.4.1",
     "pre-commit": "~1.2.0",
     "setheader": "~1.0.0"
   },