Git commits in Moodle 1.9.19 by Sam Hemelryk

commit 2b190b13593b7e0e33d65a2dd1eb69f0bfa25577
Author: Sam Hemelryk <sam@moodle.com>
Date:   Fri, 06 Jul 2012 06:10:27 +0800
Tag:    v1.9.19

weekly release 1.9.18+