Git commits in Moodle 2.6.x by Rex Lorenzo

commit 269695f48bc1bd75319ba84d2da4d90dcd1bfd5c
Author: Rex Lorenzo <rex@oid.ucla.edu>
Date:   Mon, 14 Jul 2014 12:01:03 +0800
Tag:    v2.6.5

MDL-46776 gradereport_grader: Improve Grader report user interface