LMMS/lmms — pull request #224 by wongcc966422 (2014-02-01 02:44:54+00:00)
Title: Hide RANGE spinbox when the instrument is not bendable

I didn't set the model of `m_pitchRangeSpinBox` to NULL because this crashes LMMS. Anyway, there's no harm because the value loaded from `m_pitchKnob` and `m_pitchRangeSpinBox ` are ignored for non-bendable instruments