fix(package): update @types/node to version 7.0.16

Author: greenkeeper[bot]

package.json

@@ -11,7 +11,7 @@
   ],
   "typings": "typings/index.d.ts",
   "dependencies": {
-    "@types/node": "7.0.15",
+    "@types/node": "7.0.16",
     "es6-promise": "4.1.0",
     "form-data": "2.1.4",
     "isomorphic-fetch": "2.2.1",