Git commits in Moodle 2.4.0 by Matt Petro

commit 8e771aed93eea08cc3e9410283f5354e02311281
Author: Matt Petro <petro@engr.wisc.edu>
Date:   Wed, 10 Oct 2012 01:48:30 +0800
Tag:    v2.4.0-rc1

MDL-35717 quiz: fix overdue attempt processing