Get rid of the huge zoom controls

The huge overlaying zoom controls were getting in my way and I'd rather use CTRL+Wheel anyway (actually just the wheel would be :sparkles: but that zoomcontrol is all private stuff).

This moves the zoom controls to a footer as well as some style cleanup and refactoring.

![seegit](https://f.cloud.github.com/assets/634063/2126608/4e7ea8fe-9264-11e3-90f2-43e36c5fcb7a.png)