Fixes our css and the geoexplorer js to visualize header in maps

This fixes the missing header bar in geoexplorer

![screen shot 2014-05-23 at 15 28 33](https://cloud.githubusercontent.com/assets/1818657/3067066/4917cf34-e27e-11e3-829e-7b92d2148051.png)


This is just a quick and dirty fix. We should refactor the template in the future.