[cairo] Road to 1.10

[Paolo Bonzini]

> Thanks, Chris!
> 
> This is really great to see. And I really *do* want to come back to
> cairo development soon---so the fact that snapshot-cow is on there is a
> good fire to have lit under me.

With respect to optimizing snapshot performance, any chance anyone could
take a look at my snapshot-opt branch?  It improves performance a bit on
Quartz.

http://www.inf.unisi.ch/~bonzini/webdav/cairo.git

Paolo