Developer credits

Git commits in Moodle 2.5.4 by Dan Poltawski

commit 32df282b1bede6c21e5385b34201c53906542604
Author: Dan Poltawski <dan@moodle.com>
Date:   Tue, 10 Dec 2013 11:54:13 +0800
Tag:    v2.5.4

MDL-43306 restore: fix grade item sortorder restoration

commit cf0e9701af2765cf5930d9add63b33c873bee29e
Author: Dan Poltawski <dan@moodle.com>
Date:   Thu, 05 Dec 2013 15:10:07 +0800
Tag:    v2.5.4

weekly release 2.5.3+

commit 3dc57a1203b8f7523c4bab3e3deb46c5581b035b
Author: Dan Poltawski <dan@moodle.com>
Date:   Fri, 29 Nov 2013 12:52:50 +0800
Tag:    v2.5.4

weekly release 2.5.3+

commit f4ce42df465a5e3412972b9fe7e5cf306ce4118e
Author: Dan Poltawski <dan@moodle.com>
Date:   Wed, 27 Nov 2013 11:34:16 +0800
Tag:    v2.5.4

MDL-42942 behat: increment version