fix(package): update inquirer to version 7.0.4

Closes #20

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
         "commander": "^2.14.1",
         "configstore": "^3.1.1",
         "flat": "^4.0.0",
-        "inquirer": "^3.3.0",
+        "inquirer": "^7.0.4",
         "moment": "^2.20.1",
         "omelette": "^0.4.5",
         "update-notifier": "^2.3.0"