Remove trailing spaces
Add README
Support both 16/24 bits color
Replace some int with u32
Show text

Updated kernel.ld to include .rodata (contains e.g. "hello world").

Add console font from linux (drivers/video/console/font_8x8.c).
Add printk

Definition of va_list etc is from plan9
Clean up main.c

Add a while(1) loop at the end of main, or else the screen can have
garbage.
Some utilities reading info from the property channel
Correct register nomenclature according to the peripherals manual