Git commits in Moodle 2.8.6 by John Okely

commit 33b16dd3cd2c73e3fe29bffa22843e5675ec1f54
Author: John Okely <john@moodle.com>
Date:   Fri, 24 Apr 2015 14:37:45 +0800
Tag:    v2.8.6

MDL-49848 message: Make messaging interface responsive