[MacPorts] #20536: emacs-app: update to 23.1

[MacPorts]

#20536: emacs-app: update to 23.1
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 Reporter:  css@…             |       Owner:  css@…           
     Type:  update            |      Status:  new             
 Priority:  Normal            |   Milestone:                  
Component:  ports             |     Version:  1.7.1           
 Keywords:                    |        Port:  emacs-app       
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 Now that emacs 23.1 has been released, update the emacs-app port to use
 the official emacs version. Or should this port be removed and turned into
 an emacs port variant? Since the build configuration is quite different,
 it might be best to keep emacs-app as a separate port.

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Ticket URL: <http://trac.macports.org/ticket/20536>
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