Git commits in Moodle 2.4.0 by M Kassaei

commit 940f7b9171276ef5776a576aed12e730e674dd4a
Author: M Kassaei <m.kassaei@open.ac.uk>
Date:   Fri, 24 Aug 2012 00:58:56 +0800
Tag:    v2.4.0-beta

MDL-35038 quiz reports: document the API changes in 2.3.