Web Users List View B3 Updates

ALL UPDATES ARE IN A DUPLICATE VIEW

This view will be made visible under a feature flag once I complete the user list pagination functionality. Note that I am still working on that, but figured I'd get the bootstrap 3 updates out of the way before this PR gets any larger...gah.

![screen shot 2014-12-23 at 5 43 32 pm](https://cloud.githubusercontent.com/assets/716573/5539537/85aa735c-8acb-11e4-9fa9-bb44208deb47.png)

BONUS: Fav icon in retina displays will stop sucking! @wpride 
![screen shot 2014-12-23 at 5 45 48 pm](https://cloud.githubusercontent.com/assets/716573/5539545/9cd8fe54-8acb-11e4-827f-6730313719a5.png)


fix button spacing issue. parent container should be a `div` btw. Note that `<span>` elements should never contain block elements like `<div>` that's just invalid.