Added reference counting to fluid_tuning_t.
Added fluid_tuning_duplicate() to duplicate a tuning.
Added FLUID_EVENT_QUEUE_ELEM_(SET_TUNING/REPL_TUNING/UNREF_TUNING) events.
The tuning iterator functions now use a thread private variable to be thread safe.
Tuning changes can now be activated in realtime (existing voices updated).
Added fluid_synth_get_event_elem() helper function.
Added fluid_atomic_float_(get/set) which use automic integer functions and memcpy.
CPU load should now be thread safe (using atomic integer functions to get/set float value).
Added missing free of thread_queues private in delete_fluid_synth().
Added conversion macros to/from integers and pointers.
Some cleanup in fluid_voice_calculate_gen_pitch() and made it public to libfluidsynth, used to activate tuning changes in realtime.
src/ fluid_synth.c: Declared functions as static which are local,
removed useless fluid_synth_verify_settings function.
src/fluid_synth.h: Removed declarations which are now static.
src/fluid_voice.c: Declared functions as static which are local.
src/fluid_voice.h: Removed declarations which are now static,
added note concerning fluid_voice_gen_value being declared but not used.
Removed doc/example.sf2 which was an excerpt from VintageDreamsWaves-v2.sf2.
Removed doc/midi_time.txt which was a note by Peter Hanappe on MIDI timing, but no longer needed in the source tree.
This mode allows multiple audio outputs, typically one for each MIDI input channel. It was unavailable while using audio feedback callback, for instance in QSynth when peak level meters were enabled. This has been fixed by Bernat, and backported from the FluidSynth-2.x branch (ticket #21, changeset 154)
* Use the name "PortAudio" everywhere
* Default device name: "PortAudio Default" solves the clash with the ALSA "default" device.
* enumerate only devices with 2 or more output channels available (ignore input only devices)
* use Pa_GetDefaultOutputDevice() instead of 0 for the default device index
* assign the device index for the requested device name when it matches one.
