XFixes protocol spec updates to match implementation

[Alan Coopersmith]

When preparing our review to update our libXfixes to the latest
version I noticed the protocol spec in xorg-docs was still at
version 2.   I grabbed the latest version I saw of the cursor
visibility specs from the mail thread last spring [1] and wrote
a couple of lines about the ExpandRegion request.

Does this look right?   Should I go ahead and commit as is or
does anyone have any corrections?

[1] http://lists.freedesktop.org/archives/xorg/2006-February/012916.html

-- 
	-Alan Coopersmith-           alan.coopersmith at sun.com
	 Sun Microsystems, Inc. - X Window System Engineering
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