fix(package): update node-persist to version 3.0.1

Closes #42

Author: greenkeeper[bot]

package.json

@@ -68,7 +68,7 @@
     "json-toy": "^1.0.12",
     "lodash": "^4.17.5",
     "moment": "^2.20.1",
-    "node-persist": "^2.1.0",
+    "node-persist": "^3.0.1",
     "os-locale": "^2.1.0",
     "parse-git-config": "^2.0.0",
     "prettyjson": "^1.2.1",