…ce and Blocking implementation.

  * Pulseaudio (http://www.freedesktop.org/wiki/Software/PulseAudio/)
  * Official Portaudio (http://www.portaudio.com/)

…rtaudio coding convention

…ame) as PulseAudio client name

… and not used in this file

…is in header file

…OST error messages

…seaudioFree' which frees PulseAudio and HostApi and not using 'free' to favor 'PaUtil_FreeMemory'

… writing PulseAudio

…d paste problems

…'PKG_PROG_PKG_CONFIG' (which added only when it's needed)

Add 'pa_ringbuffer.o' when it's needed by Jack or PulseAudio.

…y and let others HostApis to handle situation

… 'configure.in'

…or us.

…allways better

When using a threaded-mainloop, pulseaudio calls require
synchronisation via pa_threaded_mainloop_lock and _unlock.

This fixes errors of the form:

 Assertion 'c->callback' failed at pulsecore/socket-client.c:126, function do_call(). Aborting.
 Assertion 'c->defer_event == e' failed at pulsecore/socket-client.c:170, function connect_defer_cb(). Aborting.

Fix PulseAudio threading mainloop crashers with adding needed locking for resources that are not thread safe.

…locking for prevent crashes and faster exit

also fix logic of disconnection.

…g writing but provides 'pa_stream_writable_size'

for quering how much can we write. So with turning OFF PulseAudio write-callback and just looping until we have
written everything emulates block writing very well.

1. Change PulseAudioConvertPortaudioFormatToPulseAudio to return
paSampleFormatNotSupported on failure instead of paNotInitialized.

2. Fix OpenStream to check the return value from:
  * PulseAudioConvertPortaudioFormatToPulseAudio
  * PulseAudioBlockingInitRingBuffer

3. Fix OpenStream to return the actual PaError on failure, instead
of always returning paNotInitialized.

4. Fix OpenStream to not free the host api representation on error
(which resulted in an assertion failure later in Terminate).

Add support for non-interleaved audio