this branch is now a rolled-back version of hw_handlers w/o all the VM stuff, but with mine and Brandon's most recent commits
pull in Brandon's UART handler work from hw_handlers
Trying to create testing environment for IRQ handling
modified routine to pull interrupt source from the controller
fixing build problem
added timers in to interupts
better testing values... errors in documentation found...
working on enabling interrupts
:
Merge branch 'interrupts'

Conflicts (fixed):
	kernel/Makefile
	kernel/interrupt.c
	kernel/start.c