YafaRay plugin; update roadmap and change list

[Fomhorian73]

Well, I finally got around to try out this plugin!
But I got stuck on the old 'path' problem...
After trying to add the yafaray-exe to my
computers path via a cmd-prompt, well it took
it but nothing came out of it (but a new error).
Sooo; time for a little hack in the registry-editor
and I can't really remember when I did that the
last time...(maybe like 10 years ago???)
But I can't figure out, from the error-message in
Wings3D, what should be a key or a string-
value! There's an image attached to this posting
(I hope)...