Add basic search form to map page
Refactor search parameter parsing into helper methods
Add ability to search again from search page
Remove overriden address action and go straight to search page
Move all searching html into search.html.haml
Tidy search view into smaller partials
Make styling work for both versions of the search page
Make the search widget look more like the initial search form
Fix js bug when there are no applications found
Make search select2 default to search terms after searching
Add some more helpful text when showing search in select2