Merge branch 'master' of git://github.com/melinath/philo

* 'master' of git://github.com/melinath/philo:
  Switched feed_patterns to return urlpatterns suitable for addition to urlpatterns instead of inclusion in urlpatterns. Adjusted penfield urlpatterns accordingly. Added default behavior for FeedView.get_feed in cases where a known feed_type is not supplied for whatever reason. Added RegistrationMultiView.registration_form attribute.
  Switched user authentication in waldo from the login view to an AuthenticationForm for clearer organization of code. Split LoginMultiView into three layered views: LoginMultiView, PasswordMultiView, and RegistrationMultiView, where each layer adds additional (optional) functionality. This structure then naturally includes AccountMultiView as well. Improved redirection for login_required and account_required views.
  Corrected penfield BlogView handling of tags, particularly related to feed links. Added an optional slash at the beginning of the feed urlpattern in FeedView.feed_patterns to handle cases where this is included from something with no trailing slash.
  Corrected Waldo AccountMultiView typo and improved View error reporting / TargetURL error catching.
  Minor tweak to has_navigation filter to silence all errors and return False.
  Corrected penfield migration which introduces the feed_type column. Switched NavigationManager.update_targets_for() method to search for node pks instead of doing a JOIN - should be more efficient. Added check for node id before updating the target_node; this was causing an unwanted KeyError in cases where the NavigationItem had no target node.