Git commits in Moodle 3.4.0 by Danny Jung

commit 36a7651de251471d08f80fc9c6cc1146dbaa7995
Author: Danny Jung <dannyjung90@gmail.com>
Date:   Sat, 27 May 2017 03:02:58 +0800
Tag:    v3.4.0-beta

MDL-59073 Workshop: Prevent submission without content or file