Version 2.2

This version is updated to work with the latest Pinscape Controller firmware for KL25Z, and has a couple of other small bug fixes. (Older versions can't read status reports from the latest Pinscape KL25Z firmware because the USB message size changed in that update, and PinVol was incorrectly assuming the old message size. PinVol now uses the proper approach of sensing the actual message size the device is sending rather than assuming a hardcoded size, so it now works with the newer and older firmware versions, and shouldn't have the same problem if the message size changes again in the future.)

v2.0

update license copyright year to 2021