Feil i rascal-rsvp

Multiple messages at this line.
	-Function of type fun str(start[RsvpDoc]) cannot be called with argument types
	 (Tree)
	-Function of type fun str(RsvpDoc) cannot be called with argument types (Tree)
	-Function of type fun str(HtmlPart) cannot be called with argument types (Tree)
	-Function of type fun str(Htmls) cannot be called with argument types (Tree)
	-Function of type fun str(LAYOUTLIST) cannot be called with argument types (Tree)
	-Function of type fun str(Html) cannot be called with argument types (Tree)