chore(package): update lodash to version 4.13.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -52,7 +52,7 @@
   },
   "dependencies": {
     "assert-plus": "^1.0.0",
-    "lodash": "^4.2.1",
+    "lodash": "^4.13.0",
     "verror": "^1.6.0"
   }
 }