Git commits in Moodle 3.5.2 by sam marshall

commit 5047c83b9ca9434bf6258a1bb9d1c14c738da9a3
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Thu, 21 Jun 2018 00:44:51 +0800
Tag:    v3.5.2

MDL-61652 tool_dataprivacy: Add capabilities to control data downloads