Improved search visual design

![screen shot 2014-05-01 at 9 03 27 pm](https://cloud.githubusercontent.com/assets/332168/2859654/c30ace26-d1ae-11e3-838e-85b3b318e0b2.png)

![screen shot 2014-05-01 at 9 03 36 pm](https://cloud.githubusercontent.com/assets/332168/2859655/c5cabf9a-d1ae-11e3-8ed6-8d0ca23ce6fd.png)

review: @devoncarew