Redirect registration submitions to the parent entity only when edited from there, otherwise go back to the registraiton view.

Add registration ID variable to registration_has_room and registration_event_count functions for exclusion in count

Minor revisions to the new state system, including change signature of registration_states() to take an array of conditions.

Add hook_entity_update() implementation to set default registration settings when an entity is updated but hadn't had any settings created yet.

dpi authored Apr 13, 2012 and Lev Tsypin committed Apr 13, 2012

#1532128 by dpi: Remove registraiton field when the value is a registration type that's been deleted.