Nsound full changelog

11 now required for compiling Nsound
Fixed an AudioStream pickling bug, wasn't loading n channels or sample rate
Switched to setuptools to build wheel packages on windows (maybe os x)
Moved circular_iterator out of Buffer.h
Fixed #76: DelayLine: add dynamic delay
Fixed #63: Add 'classic' filters with resonance control
FilterLowPassMoogVcf added
AudioStream now using std::vector<Buffer *> instead of raw array
Fixed Python expressions for returning references
Fixed Python expressions for iterating over Buffer in AudioStreams
Reworked circular_iterator, added unit tests
Created delayline demo video: https://www.youtube.com/watch?v=9m3KA6JBDH8
Created tapedeck demo video: https://www.youtube.com/watch?v=Al6aHlwyEuA

Real-time audio playback via AudioPlaybackRt class
Requires low-latency driver like JACK Audio Connection Kit for smooth playback
Added real-time playback example called piano.py
Added real-time playback example called bebot.py Which mimics the iPhone App called 'Bebot'

Real-time audio playback via AudioPlaybackRt class
Requires low-latency driver like JACK Audio Connection Kit for smooth playback
Added real-time playback example called piano.py
Added real-time playback example called bebot.py Which mimics the iPhone App called 'Bebot'
Compiles on Mac again (#55)
Closed #49: Buffer::getPow() undefined in python module
Closed #50: AudioPlayback: use double buffering (added AudioPlaybackRt)
Closed #55: nsound_config: update Mac version
Closed #60: Filters: add a parameter 'bool is_realtime' like the Generator class (added setRealtime(bool) instead)
Closed #61: Remove 'reset_first' and add member variable is_realtime for the Generator class (added setRealtime(bool) instead)

· Fixed bug 3341096 FFTransform windowing
· Added Spectrogram class for calculating and plotting spectrograms
· Added AudioPlayback::getStateString()
· Added AudioPlayback::scanDevices() which will try to play a sample on all the available audio drivers detected
· Added Nsound::use(AudioBackendtype)
· Added Nsound::getBackends(), returns a list of strings of avaiable audio backends (libao or libportaudio).
· Updated AudioBackendLibao::setOptions(), now can select specific driver
· Updated AudioBackendLibportaudio::setOptions(), now can select specific driver
· Added AudioStream::pad(), ensures channels in the AudioStream are the same length
· Added AudioStream::transpose(), performs a matrix transpose by treating the AudioStream like a 2D matrix
· Added AudioStream::pow() & operator^ for powers
· Added Buffer::pow() & operator^ for powers
· Added Buffer::log(), log10()quot;
· Added Buffer::findPeaks() to find indicies of local peaks
· Removed some FFTChunk functions

· Added basic sound card playback via libao or libportaudio!
· Examples now play to the sound card!
· Made the scons build system smater in searching for the correct python
· lib to link with
· Enhanced the Wavefile class to handle unknown chunk ids and skip them
· Added User's Guide documenteation for Audio Playback and Instruments