Git commits in Moodle 2.7.11 by Andrew Nicols

commit 14d3f19dd839e7c3e1da10f5a10b7e2184761383
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Wed, 28 Oct 2015 12:57:52 +0800
Tag:    v2.7.11

weekly release 2.7.10+


commit 59b8d89ba82a5e68cb3b9910163d3787e666e1ba
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Wed, 28 Oct 2015 11:55:16 +0800
Tag:    v2.7.11

MDL-51939 mod_forum: Correct empty groupinfo check