Renamed the directories containing the sample datasets provided by Flemming Hansen.
The names are now more obvious as to their content...
This was proposed by Ed in a post at:
https://mail.gna.org/public/relax-devel/2009-01/msg00056.html
(Message-id: <7f080ed10901111037k75882ca5p6d29a4c3697659c3@...>)