Expanded upon determineModel by looking up the type of search set for the given page in WordPress AND the query string string 'type' parameter. The query string parameter takes precedence over the one set in WordPress.
Added the ability to fetch search data from multiple endpoints.
Removed specific explore layout in favor of using the 'search' template and adding a 'type' field.
Hooked up /explore to the Search model.
If the elasticsearch or hub backbone divs aren't present, don't try to run the search.