implemented bluetooth or USB serial output. in AVC_2014.h, change parameter to either BLUETOOTH or USB to select output. this is useful for debugging at the PC or at via the BLUETOOTH module.

Signed-off-by: rkburnside <richard@burnsides.org>
reording of the startup routine and the addition of a few debug lines. more needs to be done.

Signed-off-by: rkburnside <richard@burnsides.org>