Renamed TGController._require to TGController.allow_only, as decided on #turbogears
Renamed TGController._require to TGController.allow_only, as decided on #turbogears

--HG--
extra : convert_revision : svn%3A77541ad4-5f01-0410-9ede-a1b63cd9a898/trunk%405901

lucius-feng/tg2,lucius-feng/tg2