message: alter tests for new envelope release curve
diff: @@ -38,7 +38,7 @@ function (PolySynth, Basic, InstrumentTests, OutputAudioStereo, Instrument, Test
  polySynth.triggerRelease("C4", 0.1);
  }, 0.3).then(function(buffer){
  expect(buffer.getFirstSoundTime()).to.be.closeTo(0, 0.01);
  - expect(buffer.getLastSoundTime()).to.be.closeTo(0.2, 0.01);
  + expect(buffer.getValueAtTime(0.2)).to.be.closeTo(0, 0.01);
  });
  });
  @@ -51,7 +51,7 @@ function (PolySynth, Basic, InstrumentTests, OutputAudioStereo, Instrument, Test
  polySynth.releaseAll(0.1);
  }, 0.3).then(function(buffer){
  expect(buffer.getFirstSoundTime()).to.be.closeTo(0, 0.01);
  - expect(buffer.getLastSoundTime()).to.be.closeTo(0.2, 0.01);
  + expect(buffer.getValueAtTime(0.2)).to.be.closeTo(0, 0.01);
  });
  });
  