Developer credits
Git commits in Moodle 2.9.5 by John Okely
commit e6cc9e7e7d286c960c5a2d5f9eb1f79893599d35 Author: John Okely <john@moodle.com> Date: Fri, 12 Feb 2016 14:04:57 +0800 Tag: v2.9.5 MDL-50218 lti: Return empty grade when none exists
commit a1409ba644c1cc5a2e742affece92bf0da91f986 Author: John Okely <john@moodle.com> Date: Thu, 07 Jan 2016 15:22:38 +0800 Tag: v2.9.5 MDL-52608 core: Use property_exists in fullname