fix(package): update update-notifier to version 4.1.0

Closes #23

Author: greenkeeper[bot]

package.json

@@ -45,6 +45,6 @@
         "inquirer": "^3.3.0",
         "moment": "^2.20.1",
         "omelette": "^0.4.5",
-        "update-notifier": "^2.3.0"
+        "update-notifier": "^4.1.0"
     }
 }