[compiz] A little patch to make scale's show-desktop behaviouroptional

[David Reveman]

On Tue, 2007-06-05 at 11:54 +0200, Andrea Volani wrote:
> Hi, I'm only a compiz user, but just a question:
> 
> is possible to have scale plugin to undo the window expose just with a
> re-push the desktop corner, just like macos do. 
> I remember this happens in the early versions of compiz 
> Sometimes my mouse goes accidentally on the corner and i'll like to
> undo the scale by hitting the corner again.

This should now work OK for the non DnD case. DnD needs some additional
work.

-David