Git commits in Moodle 2.4.x by Steve Bader

commit 8460efc65b9a5a320fda9a4e703c52bc04408e07
Author: Steve Bader <smbader@ncsu.edu>
Date:   Fri, 02 Aug 2013 13:54:58 +0800
Tag:    v2.4.6

MDL-30852 grade report: Add aria attributes