Added a disclaimer for the re-use of events documents (posters, lectures, etc) in
http://www.nmr-relax.com/events.html.
This follows a post at:
https://mail.gna.org/public/relax-devel/2011-01/msg00030.html
(Message-id: <AANLkTim7yukjDMP9X2sJqHnVj=KwwWx2yb8i+fcSamCj@...>)
