Create a data-heavy footer

Fixes #1840. It moves `donate` and `about` to the footer and has some help links in (where we can later iterate).

![bildschirmfoto 2014-11-24 um 20 38 31](https://cloud.githubusercontent.com/assets/5362483/5171752/b92fd536-741a-11e4-9536-65a4afcba312.PNG)

![bildschirmfoto 2014-11-24 um 20 38 41](https://cloud.githubusercontent.com/assets/5362483/5171754/bd0117ba-741a-11e4-9003-77a5be1f59d0.PNG)