first draft of scheduler
fixed compilation issues
creation code almost done
implemented thread unlinking etc.
creation and destruction should work
made syscall compile
interrupt masking compiles
startup compiles
procentry.s calls right symbol
everything links again
loads keyboard driver
fixed fault handler
bashing keyboard causes faults
keyboard driver works as well as before
added ticktock program; multitasking works!
Merge branch 'queue-scheduler'

Conflicts:
	README.md