[PULL] more cleanups

[Keith Packard]

I've applied Aaron's patch separately as he posted that with your
review, and your 'Delete XineramaScreenRegions cache.' patch is calling
the pixman region functions directly rather than using the REGION_
macros. That's a no-no as we aren't using the pixman API directly at
this point.

Other than that, your patch sequence looks good to me; if you'll fix
the calls to the pixman region code and pull Aaron's patch out, I can
merge the whole thing.

-- 
keith.packard at intel.com
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