qcad scaling patch.
I was designing something using qcad and needed to scale an object in one dimension only, to draw in perspective. So I made a patch to qcad that looks for two comma-separated arguments in the rescaling dialog. If it sees two arguments, it will take the first as the x-dimension scaling and the second as the y-dimension scaling.
Also, I made a trivial patch to allow qcad to compile on a 64-bit platform.
