Add support for FLAC.
Add support for ALAC.
Add option for building without example programs.
Add support for running unit tests under Valgrind.
Update license to LGPL 2.1.
Update address for Free Software Foundation.
Remove superfluous debugging print statements in ALAC encoder.
Write ALAC channel layout tag in big-endian byte order.
Eliminate unnecessary header inclusion in ALAC source files.
Fix byte order detection for ALAC.
Fix instrument parameter validation.