Git commits in Moodle 3.6.x by Eva Davitasvili

commit 88c77c8ea368eb097f3e2b7c5cf8da50be02eb56
Author: Eva Davitasvili <eva.davit@gmail.com>
Date:   Tue, 26 Jun 2018 02:08:42 +0800
Tag:    v3.6.0-beta

MDL-60014 assign: Annotate PDF - catch no permission error