Some hacks to AudioScene, add a config file, make some OpenAL parameters configurable via mixxx.cfg, etc.
Doh, snip out most of OpenAL support. Going in a different direction.
Back to having multiple AudioListeners.
Add DistanceBasedGainCalculator and use it to drive ChannelMixer for each AudioListener.
Hack in an extra OSC output for firesim positioning of groups. Should really unicast but hacks for now.