YafaRay plugin; update roadmap and change list

[povmaniac]

oort:
Due to the nature itself of the algorithm SSS used in YafaRay, there is difficult his implementation in SPPM or Bidirectional pathtracing. I will be very satisfied, when we manage to improve his current implementation in DirectLlighting, PathTracing, and PhotonMapping.

Neon:
It is excellent news that you could already work with Yafaray. In some scenes, his times are very good, although others nevertheless, they need some adjustments. You can obtain information about YafaRay in the documentation of the official page.
http://www.yafaray.org/documentation/userguide