Git commits in Moodle 2.6.6 by Daniel Neis Araujo

commit f9f37ec8f4c866527d11099e46716095b111f7dc
Author: Daniel Neis Araujo <daniel@setic.ufsc.br>
Date:   Tue, 30 Sep 2014 03:03:01 +0800
Tag:    v2.6.6

MDL-46978 gradebook: Edit grade item changes visibility of category