Developer credits

Git commits in Moodle 2.2.x by Nicolas Connault

commit 3d9b36e0154f542024c50c90682b1bae29299262
Author: Nicolas Connault <nicolasconnault@gmail.com>
Date:   Wed, 07 Nov 2012 14:52:43 +0800
Tag:    v2.2.7

MDL-36413 Added "this->" to exclude variable assignment