[MacPorts] #15563: Update Groovy port to groovy 1.5.6

[MacPorts]

#15563: Update Groovy port to groovy 1.5.6
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  Reporter:  tomaslin at gmail.com  |       Owner:  jberry at macports.org   
      Type:  defect              |      Status:  new                   
  Priority:  Normal              |   Milestone:  Port Bugs             
 Component:  ports               |     Version:  1.6.0                 
Resolution:                      |    Keywords:  groovy 1.5.6 java lang
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Changes (by jmr at macports.org):

 * cc: jberry at macports.org (removed)
  * owner:  macports-tickets at lists.macosforge.org => jberry at macports.org

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Ticket URL: <http://trac.macports.org/ticket/15563#comment:1>
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