Git commits in Moodle 3.5.0 by Pau Ferrer Ocaña

commit 15ead7a17640fc9ed557cd746b7cf44798ab8d5e
Author: Pau Ferrer Ocaña <crazyserver@gmail.com>
Date:   Thu, 16 Nov 2017 23:07:15 +0800
Tag:    v3.5.0-beta

MDL-60835 completion: Add overrideby field to completion status WS