[Pythonmac-SIG] Use py2app: GTK+-based application/addinggenerated files/X11

[Bill Janssen]

> Indeed the folks at http://developer.imendio.com/wiki/Gtk_Mac_OS_X  
> have ported GTK+ 2 to the Mac. I have it on my still-give-it-a-try list.

The sources for this have been folded back into the regular GTK+
source tree.  But looking at the gtk-dev mailing list, it looks like
it's not quite a finished product yet.

Bill