Developer credits
Git commits in Moodle 3.4.x by Henning Bostelmann
commit 45c3cf28e97fd962c9ca0721f417435ecf4f054b Author: Henning Bostelmann <henning.bostelmann@york.ac.uk> Date: Sat, 14 Jul 2018 01:25:28 +0800 Tag: v3.4.5 MDL-62914 Calendar: handle TZURL iCal property
commit b2e76ba7d8420cdf0b790680690d647c6485694e Author: Henning Bostelmann <henning.bostelmann@york.ac.uk> Date: Tue, 25 Apr 2017 18:57:19 +0800 Tag: v3.4.0-beta MDL-57957 mod_assign: show feedback file in absence of grade item