[MacPorts] #18974: py-nevow, py25-nevow: update to 0.9.33 and fix distfile extension

[MacPorts]

#18974: py-nevow, py25-nevow: update to 0.9.33 and fix distfile extension
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 Reporter:  ryandesign@…             |       Owner:  stechert@…           
     Type:  enhancement              |      Status:  new                  
 Priority:  Normal                   |   Milestone:  Port Updates         
Component:  ports                    |     Version:  1.7.0                
 Keywords:                           |        Port:  py-nevow, py25-nevow 
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Comment(by stechert@…):

 Yes, py25-nevow should be openmaintainer.  I created most of my portfiles
 before I knew about openmaintainer (or maybe before it existed?).

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Ticket URL: <http://trac.macports.org/ticket/18974#comment:2>
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