Theme chooser + fixed ordered list

Theme chooser and slightly restyled menu bar (black text + no shadow):
![screen shot 2014-12-18 at 14 35 04](https://cloud.githubusercontent.com/assets/3859425/5488818/1b9be114-86c3-11e4-8fbd-f3c64c9a1837.png)

The only other change is the html ol li in the layout page