TOPIC: Enable full HTML in Custom Message Boxes

Currently only partial html capability exists in the custom message boxes. ie:

- Message and/or Instructions to display above the registration form for this event
- Create a custom \"Thank You\" message for the email that goes out to registrants
- Terms & Conditions for this event

Full html capability for these (and other) custom boxes would greatly increase the usability. Perhaps one approach could be to enable WYSIWYG editors (such as joomla\'s JCE or ?)