Git commits in Moodle 2.4.x by Matt Meisberger

commit dbc623c4fc5420dd8a3617d17342bb96eeec766a
Author: Matt Meisberger <mmeisberger@webcourseworks.com>
Date:   Mon, 06 Aug 2012 04:06:04 +0800
Tag:    v2.4.0-beta

MDL-34742 - adding ability to move blocks into empty column