Right most popular component

This adds in the right most popular component in as a permanent feature after a very successful A/B test.

- Tweak styling from original
- Tweak MPU padding to align with image
- Remove AB test code and switches

#### Screenshot
![screenshot from 2014-01-13 18 17 37](https://f.cloud.github.com/assets/80089/1903282/66181a2c-7c7f-11e3-8894-cb66e78e43fa.png)