I want to integrate the newsstand feature in my application.

I had done some searching and i found [this](https://github.com/viggiosoft/NewsstandTutorial) and [this](http://www.viggiosoft.com/blog/blog/2011/10/17/ios-newsstand-tutorial/)

But in both of this I need Urban Airship for push notification 

And i got this link too [here](http://urbanairship.com/)
But i am not able to get airship library.please help me