Updates logo, and corrects topnavbar and feedback form styles

Fixes #339 

Updates structure of SUL logo

![screen shot 2014-06-30 at 5 19 26 pm](https://cloud.githubusercontent.com/assets/1656824/3437664/69f0f6c2-00b5-11e4-8eec-06e6f2d6dbf1.png)


Adds styling for topbar and feedback form. Feedback form not done, still has #232.

![screen shot 2014-06-30 at 5 47 18 pm](https://cloud.githubusercontent.com/assets/1656824/3437854/4c7cd18e-00b9-11e4-9aeb-db6861aeec14.png)