[Fractdev] June 20th is Gif expiration day!

I hope that everyone here knows what happens on June 20, 2003. That's when US patent 4,558,302 expires. (That is the patent that Unisys has on the LZW compression algorithm that is used in gifs.) That doesn't necessarily mean that we give up on implementing PNG in Fractint, but it does lower the priority, I guess.