Fix #109. Floats FTW

I still don't know what the root cause is... I think it has to do with densities. Please verify on other devices.

Nexus 4:
![device-2014-04-19-181827](https://cloud.githubusercontent.com/assets/333672/2749603/c8c9d8f4-c810-11e3-9d56-8e449b8d03ca.png)

Nexus 5:
![device-2014-04-19-181839](https://cloud.githubusercontent.com/assets/333672/2749605/d462e548-c810-11e3-8cb0-43b2eb929314.png)

Nexus 7:
![device-2014-04-19-181847](https://cloud.githubusercontent.com/assets/333672/2749606/d835f232-c810-11e3-8e8e-bda0f50aa4a5.png)