Git commits in Moodle 3.9.3 by Martin Gauk

commit d686ee8faaca47f07074d3166b66f96c877080f3
Author: Martin Gauk <gauk@math.tu-berlin.de>
Date:   Tue, 29 Sep 2020 17:08:45 +0800
Tag:    v3.9.3

MDL-69257 H5P: Check size of uploaded files and virus scan