@dzucconi: Add pagination & extract "artsy ezel components" module

Not sure yet if sharing UI components are going to be more trouble than it's worth, but I found myself wanting to pull in the pagination component from Force. I copy & pasted it in and it worked out wonderfully so I decided to extract it into https://github.com/artsy/artsy-ezel-components.

![image](https://cloud.githubusercontent.com/assets/555859/4548306/dcd7e786-4e53-11e4-8fb5-f6895ad9b74d.png)