chore(package): update mocha to version 3.0.0 (#29)

Author: greenkeeperio-bot

package.json

@@ -59,6 +59,6 @@
     "feathers-service-tests": "^0.6.0",
     "feathers-socketio": "^1.3.3",
     "jshint": "^2.8.0",
-    "mocha": "^2.5.0"
+    "mocha": "^3.0.0"
   }
 }