fix(package): update configstore to version 5.0.0

Closes #22

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
         "cli-table2": "^0.2.0",
         "colors": "^1.1.2",
         "commander": "^2.14.1",
-        "configstore": "^3.1.1",
+        "configstore": "^5.0.0",
         "flat": "^4.0.0",
         "inquirer": "^3.3.0",
         "moment": "^2.20.1",