Git commits in Moodle 2.2.0 by Jean-Michel Vedrine

commit 9107daa0f57e7f0165ef44ca20d44be0930bb539
Author: Jean-Michel Vedrine <vedrine@vedrine.org>
Date:   Mon, 26 Sep 2011 05:30:40 +0800
Tag:    v2.2.0-beta

MDL-29270 Fixed question bank backup converter (field rename)