Git commits in Moodle 2.4.0 by Brian Jorgensen

commit d2b46849464d37c61a7e25a6994150117ba05a3f
Author: Brian Jorgensen <brian.jorgensen@ualberta.ca>
Date:   Wed, 04 Apr 2012 01:45:43 +0800
Tag:    v2.4.0-beta

MDL-32180 calendar - added developer hint for a missing or unreadable calendar hook file