Git commits in Moodle 2.9.4 by Eugene Venter

commit 2de94975a324b1134bdda47fcc55f92ff9a8acb1
Author: Eugene Venter <eugene@catalyst.net.nz>
Date:   Wed, 16 Dec 2015 12:16:27 +0800
Tag:    v2.9.4

MDL-52530 unittest: more robust capability assignments for guest