Git commits in Moodle 3.6.5 by Sara Arjona

commit f47a36f70771a988150682638e5a6012d8c28dc7
Author: Sara Arjona <sara@moodle.com>
Date:   Tue, 14 May 2019 19:21:45 +0800
Tag:    v3.6.5

weekly release 3.6.4+