Icon request: fa-basketball
Hi,

I think it would be fantastic to have an icon for "Basketball".

Example : 

![46341-basketball-ball-outline](https://user-images.githubusercontent.com/22425397/41218473-7f25c484-6d5b-11e8-8835-7e5453925316.png)



More examples [here](http://freevector.co/tag/basketball).
