Git merges in Moodle 3.7.4 by Sara Arjona

commit 23f9fc2c08737572a79d43eefc253d01e785ce3e
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 08 Jan 2020 15:26:55 +0800
Tag:    v3.7.4

Merge branch 'MDL-67417-37' of https://github.com/KietChan/moodle into MOODLE_37_STABLE


commit 552a926d9e8bca628b3cbf8c161aa3aa7f6185a1
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 08 Jan 2020 15:11:09 +0800
Tag:    v3.7.4

Merge branch 'MDL-67510-37' of git://github.com/junpataleta/moodle into MOODLE_37_STABLE


commit 13b6be4cdac6a290c06dd60d3c6c49da76e36372
Author: Sara Arjona <sara@moodle.com>
Date:   Tue, 03 Dec 2019 01:06:38 +0800
Tag:    v3.7.4

Merge branch 'wip-MDL-67339-37stable' of https://github.com/Beedell/moodle into MOODLE_37_STABLE


commit 6bc8d857b9e835cd9e12b96ae78a9feed535778b
Author: Sara Arjona <sara@moodle.com>
Date:   Mon, 25 Nov 2019 15:56:59 +0800
Tag:    v3.7.4

Merge branch 'MDL-67168-37' of git://github.com/andrewnicols/moodle into MOODLE_37_STABLE