Git commits in Moodle 2.6.11 by Tim Hunt

commit 10c2b92448873a8479942098a090e7c16b44438d
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Tue, 21 Apr 2015 18:03:26 +0800
Tag:    v2.6.11

MDL-49941 quiz: mod/quiz:grade should declare RISK_XSS