several changes - updated xmega32e5 bootloader to use 'universal boot'
corrected some errors in 'wiring.c' that probably didn't do anything unless
the clock wasn't set up [in which case they were the WRONG values]
made similar changes to xmegaBOOT.c (the universal boot loader), basically
to help eliminate the 'magic numbers' in the code, and also to handle E5
specific things.
continuing development for USB, not yet complete