Factored coordinate_search method out into new library file and gave it a slightly different API.  (Changes should be transparent.)
Deleted search index.js view because code is now in the layout application.js.
Factored javascript code out of maps sites_from_search template into map_search.js.
Added back the Download link for the case where the controller is the search controller.
Increment the iteration number in the simple_search_table class name on each search and pass the iteration number to the GET request.
Added map searches to advanced search page.
Take down the maps/sites_from_search page.
Added comments (no code changes).
Added comments (no code changes).
Added code to toggle display of map on search page.
Combine map search with search terms instead of having two distinct search types.
Have log_searches return the SQL query string used for possible use elsewhere.
Bug fix: Use the coordinate_search restriction in CSV searches as well.

Reinstate logging of searches everywhere.
Merge branch 'master' into SearchWithMap