added suppoer for quicktime v210 uncompressed 10bit yuv files. Thses are generated by DVC video diskstores. I also tidied readyuv.c a little. Perhaps its time to change to the file structure. we could put all the image conversion and maniputation tools in /sys/src/cmd/image/ and /386/bin/image/ resample and crop should probably go in there too. this would also require changes to nedmail, and page but I think thats all. my 2ยข worth. -Steve