Pagination on method category pages is broken

[grmarcil]

Pagination links take you to page 2 of search results for blank query search, not scoped by method category.

Really should change the routes so method category pages go through a different controller method, different template, different javascript, etc. Right not offending javascript is found in _new_search_sidebar.js, the form's submit target just needs to change and carry the category id with it. Probably should refactor application#search method into application#method_category and have a separate sidebar template too, to only display the relevant filters for that category.