Git commits in Moodle 2.9.4 by Amanda Doughty

commit 0b8f8f340200e8b4cfe69e39c6963659181a4618
Author: Amanda Doughty <amanda.doughty.1@city.ac.uk>
Date:   Mon, 14 Dec 2015 04:43:26 +0800
Tag:    v2.9.4

MDL-52455 quiz: doesn't include all user fields required by messaging