Git commits in Moodle 2.6.1 by Aaron Barnes

commit a6cf46f473208ddd68c85daf2bd64d97c70fb68b
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Mon, 16 Dec 2013 12:08:08 +0800
Tag:    v2.6.1

MDL-43394 behat: Fix checkbox action

commit b642702aa234510dd94a1180fd5c2f47df6a6c59
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Fri, 15 Nov 2013 08:34:06 +0800
Tag:    v2.6.1

MDL-42913 lib/grouplib.php: Avoid cache sometimes for groups_get_all_groups

commit 64c51196378b9bd83c9313b0a15bd896d49bab83
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Wed, 04 Sep 2013 16:35:50 +0800
Tag:    v2.6.1

MDL-41592 behat: Allow alt wwwroot to be set for acceptance testing