Git commits in Moodle 2.7.4 by Davo Smith

commit fc4da5659e88875b1cccaf4826ee896011ce81ef
Author: Davo Smith <git@davosmith.co.uk>
Date:   Tue, 16 Dec 2014 06:00:37 +0800
Tag:    v2.7.4

MDL-43462 assignfeedback_editpdf: fix display of landscape PDFs