20.Oct.2003
Added xlib-dev, automake version (1.7), autoconf version (2.57) and libavcodec
	detection
Added libmp3lame detection, but currently not working so commented out.
-Richard Baverstock

19.Oct.2003
Added m4/esd.m4 and m4/alsa.m4
Added reporting of missing libraries when configure finishes.
-Richard Baverstock
