###---> in 0.7.1
- indicate that we don't know how to decode MPEG2.5. sorry.
- a dummy crc check (we can play crc protected files now)
- an altogether better huffman decoding - a complete rewrite
- skip first, or first few, frames if main_data_begin is non zero/too big
- fixed mono playing - a bug in transform.c
- fixed /dev/dsp initialization 
- included Karl's IRIX port
- fixed a bug in fras_l and fras_s
- added a part of huffman table 13 that was missing
- included Karl's optimization patch - a huge speedup
- included Lutz' HP/UX port

###---> in 0.7.2
- added clipping code
- fixed a bug in huffman decoding