- Breadcrumb::build_from_item becomes Breadcrumb::array_from_item_parents
- Eliminate Breadcrumb::$id -- it's no longer necessary
- Fold Breadcrumb::generate_show_query_strings into Breadcrumb::array_from_item_parents
- Create Breadcrumb::set_first() and Breadcrumb::set_last()
- Breadcrumb::build_from_list goes away, we just use arrays for this
- Change Search_Controller and Tag_Controller to just create an array
of Breadcrumb instances with the first/last marked appropriately
- Breadcrumb_Test loses a bunch of complexity.
Create a Breadcrumb library which has two static methods for_item (which takes a an item and builds the entire
breadcrumb for the item) or build (which takes a variable number of Breadcrumb elements and creates a breadcrumb
based on the specified elements).
Used tag->url() to build the tag album url. Escaped the query string for the search. Tightened up the breadcrumb code
in page.html.php.
When adding the show query parameter, we can't blindly concatenate using the ? separator. We have to check that we
use a & if a query parameter already exists.
