Git commits in Moodle 2.9.3 by sam marshall

commit 9d00644da6f80e417c85fd3b52828f79fa904f30
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 09 Oct 2015 18:05:54 +0800
Tag:    v2.9.3

MDL-51652 Availability: OR conditions fail when filtering user lists

commit 1fe476078ca6e82fb5ffaddd0592e20d2f3def53
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 02 Oct 2015 19:06:16 +0800
Tag:    v2.9.3

MDL-51467 Availability: Course reset should change restrict dates

commit 5528d4e20ff31e04e083a37294ca4674cffc97fc
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 18 Sep 2015 01:35:55 +0800
Tag:    v2.9.3

MDL-51451 Moodle dialogues: Lock scroll causes background jump