chore(package): update eslint-plugin-flowtype to version 2.16.0 (#221)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -60,7 +60,7 @@
     "babel-eslint": "6.1.2",
     "eslint": "3.4.0",
     "eslint-plugin-babel": "3.3.0",
-    "eslint-plugin-flowtype": "2.15.0",
+    "eslint-plugin-flowtype": "2.16.0",
     "eslint-plugin-react": "6.2.0",
     "flow-bin": "0.29.0"
   }