Git merges in Moodle 3.4.8 by Sara Arjona

commit 53392df21906dcf744d81c8275175c4e43178031
Author: Sara Arjona <sara@moodle.com>
Date:   Fri, 08 Mar 2019 18:03:06 +0800
Tag:    v3.4.8

Merge branch 'install_34_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_34_STABLE