Developer credits
Git commits in Moodle 3.1.13 by David Monllao
commit 7696a8d9e3f98bc3ea9289ed44a7887c89536b94 Author: David Monllao <davidm@moodle.com> Date: Thu, 24 May 2018 16:45:51 +0800 Tag: v3.1.13 weekly release 3.1.12+
commit 7696a8d9e3f98bc3ea9289ed44a7887c89536b94 Author: David Monllao <davidm@moodle.com> Date: Thu, 24 May 2018 16:45:51 +0800 Tag: v3.1.13 weekly release 3.1.12+