[session] call rollback in Connection.__exit__
If we just free the cnxset and clear the Connection, we're missing the
pending operation's rollback_event callbacks, which may be needed for
cleanup.
Add some entities
-----------------
As manager, you can access to entity creation forms by using the `site management`_ page.
.. _`site management`: manage
As regular user, the index page or the action box may propose some links to create entities according to the context.