Various UI tweaks.

![screen shot 2014-04-03 at 10 30 00 pm](https://cloud.githubusercontent.com/assets/1495261/2612164/3c63385e-bbba-11e3-8c33-458be9c9dce2.png)

![screen shot 2014-04-03 at 10 30 11 pm](https://cloud.githubusercontent.com/assets/1495261/2612165/3fcd49a8-bbba-11e3-9d33-88dd8ea4c6ab.png)