Git commits in Moodle 2.7.11 by Juan Leyva

commit bdaa571437c6357f322871b068f02a4520b7a23d
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Sat, 24 Oct 2015 23:03:35 +0800
Tag:    v2.7.11

MDL-51569 mod_choice: Check choice availability prior to do any action


commit 3d58fd5841308018b32ca78206c74f27c4d4b9c3
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Thu, 22 Oct 2015 14:03:12 +0800
Tag:    v2.7.11

MDL-50837 mod_scorm: Fix availability checks