* Fixed bugs in MIDI::PitchBend reading and writing, thanks to Emanuel Borsboom.

* Fixed a bug in MIDI::Track#quantize.

* The argument to MIDI::Track#quantize has changed: it is now either a note name ("sixteenth", "32nd", "8th triplet") or a length (1 = quarter, 0.25 = sixteenth). This is a drastic change that will break all previous calls to quantize. However, since that method was broken already, I don't feel it's a burden to anybody to change the arguments.