Git merges in Moodle 3.8.1 by Sara Arjona

commit 7d7d3520a7342334d66dba227eaa28c1f7b54b9e
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 08 Jan 2020 15:26:44 +0800
Tag:    v3.8.1

Merge branch 'MDL-67417-38' of https://github.com/KietChan/moodle into MOODLE_38_STABLE


commit 85ba5d1d8875bc9302ec48819d6161e72cca2de7
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 08 Jan 2020 15:11:01 +0800
Tag:    v3.8.1

Merge branch 'MDL-67510-38' of git://github.com/junpataleta/moodle into MOODLE_38_STABLE


commit ab2bb07f2e7f2e4c9f58b0d6c1032611db4b53b1
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 04 Dec 2019 18:24:56 +0800
Tag:    v3.8.1

Merge branch 'MDL-67404_38' of https://github.com/stronk7/moodle into MOODLE_38_STABLE


commit f751a8edbe7fac7f71b9051977f762319f61c438
Author: Sara Arjona <sara@moodle.com>
Date:   Tue, 03 Dec 2019 01:06:31 +0800
Tag:    v3.8.1

Merge branch 'wip-MDL-67339-38stable' of https://github.com/Beedell/moodle into MOODLE_38_STABLE


commit c42b488aaffdfbfd5449ca30525d5ffff53f9a89
Author: Sara Arjona <sara@moodle.com>
Date:   Mon, 25 Nov 2019 22:42:02 +0800
Tag:    v3.8.1

Merge branch 'MDL-66627-38' of git://github.com/mickhawkins/moodle into MOODLE_38_STABLE