Git commits in Moodle 2.8.x by Joshua Johnston

commit 48d0e750683e1f6bf3b0e455290726c6119ebd26
Author: Joshua Johnston <jojohnston@kaplan.edu>
Date:   Tue, 12 Aug 2014 05:16:30 +0800
Tag:    v2.8.2

MDL-46651 Backup: Handle duplicate course completions during restore