-Fix another 2.0 problem (rematrix was wrong).
-Fix the never resync on a bad crc bug.
-New library interface
-Fix bug wrt coupling channels that was causing sound quality problems.
-Fix 2.0 mode problems (aka the I forgot to implement the phase flags bug).
-All around speed improvements (almost twice as fast)
-Improved robustness when fed bad data. The entire frame is checksummed
before playback.
