chore(package): update jshint to version 2.9.3

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -27,7 +27,7 @@
   "dependencies": {
     "fixmyjs": "*",
     "gulp-util": "^3.0.1",
-    "jshint": "~2.6.3",
+    "jshint": "~2.9.3",
     "rcloader": "~0.1.4",
     "through2": "*"
   },