Git commits in Moodle 3.7.0 by Toni Barberà Melià

commit 1eeb465a0cf0a1514c57ea123a528f3ed3313430
Author: Toni Barberà Melià <toni@moodle.com>
Date:   Fri, 11 Jan 2019 18:41:32 +0800
Tag:    v3.7.0-beta

MDL-57898 core_customfield: Custom fields API