** Added end-point for listing Illusion event groups into Illusion rest
service
** Added MailBuilder into mailer that can be used to build emails more
easily
** Added support for mailing event participants
** Fixed bug that caused forum posts and topics with dots to result in
404
** Lowered forum topic count from 20 to 19 on front page
[maven-release-plugin] prepare release 3.2.4