Git commits in Moodle 2.9.4 by Peter Miller

commit 374639d3e6f0e96860b29e304768b92370a70318
Author: Peter Miller <peterm9@goshen.edu>
Date:   Mon, 04 Jan 2016 17:52:30 +0800
Tag:    v2.9.4

MDL-52078 gradebook: Stop totals including hidden items.