Using late static binding to move all schemaDef() into Managed_DataObject class
Extracting database structure from class Deleted_notice
Extracting database structure from classes Fave, File, File_redirection, File_thumbnail, File_to_post, Foreign_link, Foreign_service, Foreign_subscription and Foreign_user
Extracting database structure from classes Group_alias, Group_block, Group_inbox, Group_join_queue and Group_member
Extracting database structure from class Invitation