0.1:
First release

0.2:
code cleanup
Better command line flag handling, these can be anywhere now,
and no limitations on filenames.
Less include files used.

0.3:
Cleaned up proto.h
Now prints ID and version if verbose.
Replaced display_progress_flag by verbose_flag.
Check for wave file 'RIFF', 'WAVE', 'fmt ', and 'data' in wave headers.
Test for max files exceeded (set to 100).

0.4:
Now much faster, because copy 65536 bytes at the time,
versus one sample at the time in the old version.
Error messages on ferror().

0.4.1:
Early EOF check on input files.

0.4.2:
Added file support for > 2GB

0.4.3:
More extensive error reports if filelength does not match value indicated
in header.

0.4.5:
Changed wave_header.h so 8 and 16 bits variables are defined on AMD64.
Added version info in print_usage().



