Git commits in Moodle 2.7.5 by Aaron Barnes

commit 17c0747edd10b7b205b5c74834c1bc74962bab4c
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Wed, 24 Dec 2014 07:31:57 +0800
Tag:    v2.7.5

MDL-47792 javascript: Fix for cropped headers and horizontal align