Git commits in Moodle 2.1.10 by Adrian Greeve

commit 640acd990720e327e61f920e9bb563f484d47fe4
Author: Adrian Greeve <adrian@moodle.com>
Date:   Mon, 29 Oct 2012 14:13:43 +0800
Tag:    v2.1.10

MDL-36668 - mod/data: Removed duplicate data_content join in simple searches.