Issue #1094014: Allow export $item->type to be something else to reduce namespace collisions on exportable objects.

Issue #1104132: Context selection in views panes/contexts was sometimes using wrong contexts due to entity transition.

Issue #1103278 by dereine: Add CRUD function to enable/disable objects. Update the api version to make it easy for modules to detect the presence of the new function.

Issue #1102252: Implement and document default object caching, taken mostly from how Views used to do it.

Kris Vanderwater authored Apr 07, 2011 and Earl Miles committed Apr 21, 2011

removing the logic for not building menu items for "none" parents. page_manager should never be creating a default local task for a menu item that it is not also in control of or taking over #1119782

Handle the occasion when an existing module adds "export" capability to schema and export_ui asks for it for the first time, force the schema to reset.

Issue #1055294: Double check_plain() in page manager titles, because page manager already plains the titles.