Add dependancy check

README.md

@@ -1,5 +1,8 @@
 # Flasher.js
-[![Build Status](https://api.travis-ci.org/thingsSDK/flasher.js.svg)](https://travis-ci.org/thingsSDK/flasher.js)
+[![Build Status](https://api.travis-ci.org/thingsSDK/flasher.js.svg)](https://travis-ci.org/thingsSDK/flasher.js) 
+[![Dependency Status](https://david-dm.org/thingsSDK/flasher.js.svg)](https://david-dm.org/thingsSDK/flasher.js)
+[![devDependency Status](https://david-dm.org/thingsSDK/flasher.js/dev-status.svg)](https://david-dm.org/thingsSDK/flasher.js#info=devDependencies)
+
 
 <img src="http://thingssdk.com/flasher.js.svg" width="180px" height="180px">