Fix editor bottom bar

Fix issue #452 
On top of the editor ui changes, I fixed a bug that caused the map not to refresh/display the markers on screen rotation.

Here's what the editor ui changes look like.
![editor_with_no_marker](https://f.cloud.github.com/assets/914968/1766618/43164942-6747-11e3-9793-9907f5ab5c10.png)

![editor_with_markers](https://f.cloud.github.com/assets/914968/1766619/47c432ba-6747-11e3-9595-b609d0c57542.png)