Add "browse/*" solr pages


#4855 

Except for making it work by itself (without search term and the other filter blocks), we need to see how to allow styling/theming the result pages not to look like search results.

![selection_028](https://f.cloud.github.com/assets/99186/1949188/265d021c-80ee-11e3-9102-dc5b43db9fcd.png)