Git commits in Moodle 2.8.4 by Michael Hughes

commit 5b7e7362a9ecb46346af56a7788f7fc0bf5e3c6e
Author: Michael Hughes <michaelhughes@strath.ac.uk>
Date:   Wed, 04 Feb 2015 19:14:21 +0800
Tag:    v2.8.4

MDL-48215 gradingform_guide: Name length validation