Git commits in Moodle 3.0.3 by John Okely

commit 0b1455e93bd27899e9e9043786d26032b216f218
Author: John Okely <john@moodle.com>
Date:   Fri, 12 Feb 2016 14:04:57 +0800
Tag:    v3.0.3

MDL-50218 lti: Return empty grade when none exists


commit ec6f81207a1fa4495a09133c623290d158a3376b
Author: John Okely <john@moodle.com>
Date:   Thu, 07 Jan 2016 15:22:38 +0800
Tag:    v3.0.3

MDL-52608 core: Use property_exists in fullname