New snd_pcm_hw_params_* functions are available only explicitly when
ALSA_PCM_NEW_HW_PARAMS_API is defined.
Updated documentation and test code to new API.
- added backward compatibility for older non-compatible functions
- added --with-compat-rc3 to configure script to build library
backwards compatible with 0.9.0rc3
- added symbol versioning like libc.so.6
- ALSA_0.9 - alsa base
- ALSA_0.9.0rc4 - first set of new functions (snd_pcm_hw_params_*)