Updates whiteNoise demo to use newer biquad filter impl.
Merge branch 'master' into infusion

* master:
  Updates whiteNoise demo to use newer biquad filter impl.
Broke scheduler out into separate file. Lots of bug fixes.
Temporarily removed channel expansion from flock.ugen.out, causing test failures until it is reimplemented correctly.
Reintroduces channel expansion in flock.ugen.out.
Micro-optimization of flock.enviro.evalGraph.