Git commits in Moodle 2.9.6 by Dani Palou

commit 64224cb8404f36cf70f3723dabe5587e456837b0
Author: Dani Palou <dani@moodle.com>
Date:   Thu, 31 Mar 2016 21:38:55 +0800
Tag:    v2.9.6

MDL-53671 book: Return whole filepath in book_export_contents