chore(package): update ghooks to version 2.0.4

Closes #51

Author: greenkeeper[bot]

package.json

@@ -66,7 +66,7 @@
     "eslint-import-resolver-node": "0.2.3",
     "eslint-plugin-import": "2.2.0",
     "eslint-plugin-mocha": "4.7.0",
-    "ghooks": "1.3.2",
+    "ghooks": "2.0.4",
     "imports-loader": "0.6.5",
     "just-wait": "1.0.9",
     "karma": "1.3.0",