[MacPorts] #19016: neon: update to version 0.28.4

[MacPorts]

#19016: neon: update to version 0.28.4
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 Reporter:  devans@…             |       Owner:  dluke@…           
     Type:  enhancement          |      Status:  new               
 Priority:  Normal               |   Milestone:  Port Updates      
Component:  ports                |     Version:  1.7.0             
 Keywords:                       |        Port:  neon              
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 simple patch to upgrade neon to 0.28.4.

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Ticket URL: <http://trac.macports.org/ticket/19016>
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