Git commits in Moodle 2.2.1 by Jamie Pratt

commit 9abb69aacb5b3d5cc1e048200e9ecff9f6613c56
Author: Jamie Pratt <me@jamiep.org>
Date:   Thu, 15 Dec 2011 15:38:42 +0800
Tag:    v2.2.1

MDL-30749 fixing typo referring to question instead of answer object