Git commits in Moodle 2.3.7 by Jonathon Fowler

commit 2ffd3701f5a413499cc43ee9f5ddb311470c460d
Author: Jonathon Fowler <fowlerj@usq.edu.au>
Date:   Thu, 17 Jan 2013 10:19:44 +0800
Tag:    v2.3.7

MDL-38388 qformat_blackboard_six: fix question image import