screen: remove complex screen init
uart: timeout waiting for reset in uartenable
9: implement timerset and hook up portclock
uart: timeout in putc and getc
9: remove n900 naming from files that do not require it
readme: add links for info
screen: refrain from copying the font
readme: bootable image needs fewer binds
readme: build the sd card image
readme: small fixes
readme: more read me than ever before
mmu: unified cache invalidation needs to stash lr
trap: fp invalid checks in note handling
trap: add missing clrex to _virq
mmu: remove redundant stash and splhi in cache ops
readme: installation instructions