Simplify SpoolerTimer() by removing extra 'after'
Ensure spooling works properly when in normal mode

Also changed speeds to reflect the true speed of the ACE or a multiple
of it when in fast mode.
Move fix_tstates() to correctSpeed() in z80.c
Turn key auto repeat on/off as focus changes
Sync spooling with simulated vertical refresh int

The vertical refresh interrupt is calculated using the number of states
that have been executed to ensure tha if there are any delays that
everything will still be in sync.
Correct ascii code for letter 'z' when spooling

Luckily I was spooling some code written my Marcos Cruz and noticed that
it kept dropping the 'z' in his name.