chore(package): update vinyl to version 2.0.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -57,7 +57,7 @@
     "gulp-istanbul": "^1.0.0",
     "gulp-mocha": "^2.2.0",
     "swagger-template-es6-server": "0.0.5",
-    "vinyl": "^1.1.1"
+    "vinyl": "^2.0.1"
   },
   "engines": {
     "node": ">=4.0.0"