[MacPorts] #53246: tomcat6 @6.0.35_1: update to 6.0.53

[MacPorts]

#53246: tomcat6 @6.0.35_1: update to 6.0.53
----------------------+----------------------
  Reporter:  l2dy     |      Owner:  blair
      Type:  update   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:  fixed    |   Keywords:  security
      Port:  tomcat6  |
----------------------+----------------------

Comment (by blair):

 It seems wrong to leave a version with a known security issue in MacPorts
 since MacPorts is always live. It's not like Ubuntu 12.04 or some version
 which is retired, so I updated it.

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Ticket URL: <https://trac.macports.org/ticket/53246#comment:4>
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