Developer credits

Git commits in Moodle 2.4.7 by Henning Bostelmann

commit 0137a13d55acbea785297beaabad170ab53c0555
Author: Henning Bostelmann <henning.bostelmann@york.ac.uk>
Date:   Fri, 06 Sep 2013 20:35:08 +0800
Tag:    v2.4.7

MDL-29987 File resource: fix problem with PDF display on mobile devices