In cas_encode always call *_process_byte and *_process_signal functions
In cas_decode, add a state variable that represents one of three
Move detection of IRG to the beginning of process_data_bytes instead of
Support decoding of "fsk" chunks ocurring immediately after "data"
Support ignoring of glitches between bits of a decoded byte, if enabled
Enable support for floating-point-based WAV files.
Support ignoring of glitches between bits of a decoded byte, if enabled
Fixed typos in comments.