Git commits in Moodle 2.6.5 by Kevin Wiliarty

commit 552f77e155574a10fce8fbd5b97f0fdb48cf4153
Author: Kevin Wiliarty <kevin.wiliarty@gmail.com>
Date:   Thu, 14 Aug 2014 04:40:16 +0800
Tag:    v2.6.5

MDL-46464 supplies missing method (and PHPUnit test) for grading workflow