* Fix failure to remember that we have constructed an interpolator

window already (#25).  Also avoid using alloca for substantial buffers
* Lose FFT::getFloatTimeBuffer and getDoubleTimeBuffer -- it's too
unclear when it's safe to use them and it's safer to control sizes externally.
In RB with smoothing on, these buffers were incorrectly being used for window-si
zed calculations (larger than FFT-sized).
* Fix some incorrect buffer resize sizes
* Build fixes for OS/X

src/dsp/PercussiveAudioCurve.cpp

@@ -43,7 +43,7 @@ PercussiveAudioCurve::reset()
 void
 PercussiveAudioCurve::setFftSize(int newSize)
 {
-    m_prevMag = reallocate(m_prevMag, m_fftSize, newSize);
+    m_prevMag = reallocate(m_prevMag, m_fftSize/2 + 1, newSize/2 + 1);
     AudioCurveCalculator::setFftSize(newSize);
     reset();
 }