Added sound files for timidity and configured it to work with xrmap.
Added rules for xrmap
Added rules for Pike, stellarium and dvdauthor.
Fixed comment.
We now have a rather full featured transcode.
Added rules for avifile.
Added avifile dependency for transcode.
ffmpeg now installs libpostproc which transcode wants.
Added libfame dependency to transcode.
Added libmpeg3 dependency to transcode.
