Git commits in Moodle 2.9.0 by Davo Smith

commit 50c12f01bcc70e974f18b08bed3b77be548dc1df
Author: Davo Smith <git@davosmith.co.uk>
Date:   Tue, 16 Dec 2014 06:00:37 +0800
Tag:    v2.9.0-beta

MDL-43462 assignfeedback_editpdf: fix display of landscape PDFs