Git commits in Moodle 3.7.0 by Jonathon Fowler

commit b2512618f1e7be6eca1b131fb70ce5b5a0aafc76
Author: Jonathon Fowler <fowlerj@usq.edu.au>
Date:   Tue, 30 Apr 2019 10:34:34 +0800
Tag:    v3.7.0-beta

MDL-65445 qtype_ddwtos: reposition draggables when the drops move