Git commits in Moodle 2.6.5 by Paul Holden

commit 9d4a3167327db782dccc5c60a50b3680ab53c430
Author: Paul Holden <pholden@greenhead.ac.uk>
Date:   Fri, 06 Jan 2012 19:52:31 +0800
Tag:    v2.6.5

MDL-21042 report_security: don't display warning for riskbackup unnecessarily