Git commits in Moodle 3.0.0 by Serge Gauthier

commit 694f195da0f35e54d2d03138b091de65f0904da1
Author: Serge Gauthier <serge.gauthier.2@umontreal.ca>
Date:   Tue, 30 Jun 2015 21:24:18 +0800
Tag:    v3.0.0-beta

MDL-50602 - Automated backup: Remove old backups associated to courses