Git commits in Moodle 3.1.4 by Tim Lock

commit 42d6fc0b83c6414654a248f37295c80ce5b7e0ec
Author: Tim Lock <tim@netspot.com.au>
Date:   Mon, 28 Nov 2016 08:02:49 +0800
Tag:    v3.1.4

MDL-57170 repository_dropbox: Ensure Dropbox Legacy continues to work