Provide a view showing:
- A feedback message where the current search term is displayed.
- Suggested options: based on likely languages and languages with one
additional level of editing distance than the used in the search algorithm.
- Instructions for search and browse including links to all the sub-regions
available.
* Introduced success, noresults callbacks for language and region filters
* Region filter can be a link for a region alone.
Change-Id: I713b62911bb32e1b1427320ced767b144180c5c4
