Git commits in Moodle 3.1.x by David Risner

commit 4584c3de23b522ab4eb9f794e5063fa094394529
Author: David Risner <drisner@calstate.edu>
Date:   Tue, 12 Apr 2016 07:28:55 +0800
Tag:    v3.1.0-beta

MDL-53095 repository_merlot: change merlot url use https