Git commits in Moodle 2.6.x by Russell Boyatt

commit 8f485ce28e51d55d7b72baea3ed13893ca2ac8b0
Author: Russell Boyatt <russell.boyatt@warwick.ac.uk>
Date:   Wed, 29 May 2013 22:32:48 +0800
Tag:    v2.6.0-beta

Fixing MDL-39710: setting to limit student access to rubric now checked.