Git commits in Moodle 2.5.1 by Dan Marsden

commit ff3a54a5f7a8e13505cd42718e0469dd58278a15
Author: Dan Marsden <dan@danmarsden.com>
Date:   Thu, 06 Jun 2013 07:57:22 +0800
Tag:    v2.5.1

MDL-37968 course_overview: add dim class to hidden courses for teachers.

commit 0bde9de1616174209bc03030ebcf8d3265586585
Author: Dan Marsden <dan@danmarsden.com>
Date:   Mon, 13 May 2013 06:41:27 +0800
Tag:    v2.5.1

MDL-39628 Chat: check mod/chat:chat capability when using daemon.