Fixes for os profiles app settings.

#4814 

In this PR the comments and bugs for #4814 will be addressed.
- Made the "title" display style clickable:
![selection_164](https://f.cloud.github.com/assets/4497748/2075682/b29b6cd6-8d92-11e3-9554-96a50b25d931.png)
![selection_162](https://f.cloud.github.com/assets/4497748/2075683/b88135ae-8d92-11e3-8ffd-a652132c1bab.png)

- Fix changing os profiles display settings so it would not affect other vsites:
![selection_161](https://f.cloud.github.com/assets/4497748/2075690/dcce8b0a-8d92-11e3-9692-14e5c3ecf1a6.png)

Also added a test for making sure that changing the display type on one vsite doesn't affect other vsites.