Developer credits

Git commits in Moodle 2.2.x by Joseph Rezeau

commit 29c1067b683ab76756fbb59005992ee284b011cc
Author: Joseph Rezeau <moodle@rezeau.org>
Date:   Wed, 12 Dec 2012 01:59:31 +0800
Tag:    v2.2.7

MDL-37114 quiz form validation: feedback boundaries.

commit 6404d229547e3a5bd5152616216b5bd662f81461
Author: Joseph Rezeau <moodle@rezeau.org>
Date:   Thu, 16 Feb 2012 16:00:31 +0800
Tag:    v2.2.2

MDL-31556 Lesson Module: fixed missing 'lesson closes' event in calendar