[MacPorts] #54726: sbt @0.13.15: update to 1.0.1

[MacPorts]

#54726: sbt @0.13.15: update to 1.0.1
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  Reporter:  l2dy    |      Owner:  blair
      Type:  update  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  sbt     |
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Comment (by mmynsted):

 `sbt` 1.0 requires `Java 1.8` or later and thus can not be used by all
 users.  It would be helpful to have a new `sbt-0.13` port for those users
 who must work with an older JVM.

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Ticket URL: <https://trac.macports.org/ticket/54726#comment:2>
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