chore(package): update husky to version 0.13.4

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -66,7 +66,7 @@
     "eslint-plugin-babel": "^4.0.1",
     "eslint-plugin-markdown": "^1.0.0-beta.4",
     "eslint-plugin-xo": "^1.0.0",
-    "husky": "^0.13.1",
+    "husky": "^0.13.4",
     "np": "^2.14.1",
     "nyc": "^10.3.2",
     "rimraf": "^2.6.1"