Fix for the new bootstrap navbar

Fixes the responsive navbar for the bootstrap 3.0.0 markup. Now it looks like a navbar instead of a bunch of gibberish.

Before:
![before](https://f.cloud.github.com/assets/3453188/556380/7cfa7c78-c3d7-11e2-8586-e13c5908e4c2.png)

and after!:
![after](https://f.cloud.github.com/assets/3453188/556383/85c9b1d4-c3d7-11e2-9791-1a711113e7e7.png)

Should be good to go into the 3.0-wip