Git commits in Moodle 3.0.0 by Jean-Philippe Gaudreau

commit e10c9acc197a4856db128fcabd0e90cd6e06a888
Author: Jean-Philippe Gaudreau <jp.gaudreau@umontreal.ca>
Date:   Thu, 27 Aug 2015 08:55:03 +0800
Tag:    v3.0.0-beta

MDL-50602 - Automated backup: Add constants for storage types

commit 286d6c81bf0644916f296bd02f081425f288384d
Author: Jean-Philippe Gaudreau <jp.gaudreau@umontreal.ca>
Date:   Tue, 25 Aug 2015 05:05:44 +0800
Tag:    v3.0.0-beta

MDL-51191 assign: Optimizing slow SQL query for MySQL

commit 2b7c85da17bf778fe8b68d391027fc02dba26e25
Author: Jean-Philippe Gaudreau <jp.gaudreau@umontreal.ca>
Date:   Tue, 18 Aug 2015 03:22:08 +0800
Tag:    v3.0.0-beta

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