Feature/modal size

Styling and partial-ing filters in selector/advanced search modals
This bit makes the load more spinner in LHN look like this:
![screen shot 2014-09-15 at 14 50 00](https://cloud.githubusercontent.com/assets/513444/4271319/dbcf06c8-3cd6-11e4-8b93-7b4347cf7e53.png)

Probably not intended?