Git commits in Moodle 3.2.4 by Ryan Wyllie

commit d90b7b734c37e33f6e82e1880b4123c04c7d9f4f
Author: Ryan Wyllie <ryan@moodle.com>
Date:   Mon, 08 May 2017 10:13:14 +0800
Tag:    v3.2.4

MDL-58822 backup: backup and restore user override events