YafaRay plugin; update roadmap and change list

[oort]

povmaniac,
You may be moving outside of my skill level as a hacker. I will have to read up on forks and pull requests. If you and/or Micheus know of good links I should read, please post them in the programming section of the forum. I didn't even know that two people could work on the same plugin at the same time...

Until I found out that not all of the background lights were working, I had considered myself done except for cleaning up the code...

And of course updating as features were added in YafaRay...

Thanks,
oort