Developer credits
Git merges in Moodle 3.6.x by AMOS bot
commit 23d136271886eb0b7882c8d0f1d21ab9720d03ce Author: AMOS bot <amos@moodle.org> Date: Wed, 10 Apr 2019 08:12:20 +0800 Tag: v3.6.4 Merge branch 'MOODLE_36_STABLE' into install_36_STABLE
commit 23d136271886eb0b7882c8d0f1d21ab9720d03ce Author: AMOS bot <amos@moodle.org> Date: Wed, 10 Apr 2019 08:12:20 +0800 Tag: v3.6.4 Merge branch 'MOODLE_36_STABLE' into install_36_STABLE