----------------------------
* Backed out changeset: 8dac998c6f0c - stephenmcd
* Add ``expiry_date`` field to ``DisplayableAdmin`` - stephenmcd
* Change ``if`` tags in breadcrumbs and ``toplevel_menu`` templates to be Django 1.1 compatible, and to use the ``page.selected`` attribute rather than ``template_utils`` lib, allowing it to be removed from ``pages_tags`` - stephenmcd
* Use consistant naming for each type of page menu and include all types of page menus in default templates - stephenmcd
* Create a custom breadcrumb menu for blog posts - stephenmcd
* Replace the ``setting`` tag with a ``load_settings`` tag that takes a list of setting names and injects them into the template context - stephenmcd
* Bugfix template tag name for admin page menu - stephenmcd