Git commits in Moodle 2.8.9 by sam marshall

commit 027393307976d99634a6d76a2448c5e2c81e6635
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 09 Oct 2015 18:05:54 +0800
Tag:    v2.8.9

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


commit 378f34a4694c7be889ea01f7231d2a45b0b63398
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 02 Oct 2015 19:06:16 +0800
Tag:    v2.8.9

MDL-51467 Availability: Course reset should change restrict dates


commit 735ef8ba928cfd19c8de3f867d37c1ff2aa63ea9
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 18 Sep 2015 01:35:55 +0800
Tag:    v2.8.9

MDL-51451 Moodle dialogues: Lock scroll causes background jump