Changed structure of myApp template and rinApp to match
USB support loaded automatically in rinApp now
device initialisation called in rinApp instead of myApp
K400 - tidied up a warning message for lost status events
K400: updated buzz() to take a second parameter to set length
K400:  abort key sent to R420 when application starts up to clear any running operator editor
New library rinUSBKBD with editor that uses USB keyboard
myUSBApp.lua updated to demonstrate how to use this