Update android styling (bug 967145)

Style updates bringing us closer to the wireframe in bug (967145) for wider viewports.

![styleguide](https://cloud.githubusercontent.com/assets/1514/3630179/c1d94bb8-0ea8-11e4-92ef-cd358b003654.png)
![styleguide](https://cloud.githubusercontent.com/assets/1514/3630184/c62e1f86-0ea8-11e4-8250-e3a864678d46.png)
![styleguide](https://cloud.githubusercontent.com/assets/1514/3630187/ca94d5ba-0ea8-11e4-9821-78fd3714b6c7.png)
![styleguide](https://cloud.githubusercontent.com/assets/1514/3630190/cecf394a-0ea8-11e4-9790-465826f2d997.png)