[Gpm] repeat and accel

[Alessandro Rubini]

> I dropped the ball on this one because I am lame, but I'm officially tired
> of running a patched gpm, so it's time to submit what I did.  Having a
> maintainer is some incentive. :-)

Yes, it's good news.
 
> The problem, to recall, is that sometimes the repeater functions are asked
> to repeat more bits of dx and dy motion than the protocol can represent.

I like your patch. Very clean and effective. I think Nico will accept
it.

/alessandro, somehow feeling vice-maintainer, when Nico is too busy to reply