Knorr did the work I believe, Portha did the business, but he knows how to do the work.
Stephane Portha is unixmad, you're thinking of Stefan Knorr.
I think it was as of 2014, Stefan Knorr stopped working with Stephan and sold off.
- - - Updated - - -
Here, refer to this: http://www.graalians.com/forums/showthread.php?t=5459