[MacPorts] #37353: bitcoin: Update from 0.3.22 to 0.7.2

[MacPorts]

#37353: bitcoin: Update from 0.3.22 to 0.7.2
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  Reporter:  sami.laine@…  |      Owner:  macports-tickets@…
      Type:  update        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.1.2
Resolution:                |   Keywords:  haspatch
      Port:  bitcoin       |
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Comment (by sami.laine@…):

 Also willing to take ownership of this port, as it seems that the original
 contributor is not active w/ this port anymore.

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Ticket URL: <https://trac.macports.org/ticket/37353#comment:4>
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