[MacPorts] #53097: kchmviewer: upgrade to v7.7 and Qt 5.6

[MacPorts]

#53097: kchmviewer: upgrade to v7.7 and Qt 5.6
-------------------------+----------------------
  Reporter:  RJVB        |      Owner:  mkae
      Type:  update      |     Status:  accepted
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  haspatch
      Port:  kchmviewer  |
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Changes (by mkae):

 * status:  assigned => accepted


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Ticket URL: <https://trac.macports.org/ticket/53097#comment:2>
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