TODO

Kernel routines:
	way to kill process
	way to free memory
	better scheduler (that only runs the idle process at idle)
	blocking I/O

Performance:
	MMU/L1 cache support
	tophalf/bottomhalf IRQ split
	performance counter driver

Systemcalls to add:
	nanosleep
	uname
	open/close

Binary support:
	ARM binflt support

Filesystem support:
	romfs
	fat

Hardware support:
	i2c
	SD card
	USB ( https://github.com/rsta2/uspi )

Keybaord driver:
	Properly generate ANSI escape chars for arrows, etc

Annoyances:
	Have serial console automatically change \n to \r\n

Rapsberry Pi 2 support
	Change I/O offset
	Interrupt controller is more complex, see
		[PATCH 4/4] irqchip: Add bcm2836 interrupt controller for Raspberry     Pi 2