Git commits in Moodle 2.5.1 by Iñaki Arenaza

commit 2f467a82a17f3458345f0c1318c36a40d4264d8f
Author: Iñaki Arenaza <iarenaza@mondragon.edu>
Date:   Thu, 30 May 2013 23:09:49 +0800
Tag:    v2.5.1

MDL-34085 Fix the backup options names in core_course_duplicate_course

commit 9f13f53393f2830d87d1d9ae2f6057f3594c9153
Author: Iñaki Arenaza <iarenaza@mondragon.edu>
Date:   Thu, 25 Apr 2013 05:31:48 +0800
Tag:    v2.5.1

MDL-39323 Make sure start_tls config value is defined