Git commits in Moodle 2.8.8 by Henning Bostelmann

commit 096dc2d33f604c95359f06e5c5d981f02aced2ce
Author: Henning Bostelmann <henning.bostelmann@york.ac.uk>
Date:   Fri, 17 Jul 2015 00:03:42 +0800
Tag:    v2.8.8

MDL-35027 mod_forum: Fix subscriber list in hidden forums