[MacPorts] #39188: R-app: upgrade to 1.61

[MacPorts]

#39188: R-app: upgrade to 1.61
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  Reporter:  robsonpeixoto@…  |      Owner:  kjell.konis@…
      Type:  update           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  R-app            |
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Comment (by kjell.konis@…):

 Maintainer here: attached diff updates port to 1.61 (R.app that
 corresponds to R 3.0.1). Also, tarball now fetched instead of svn, and
 changed Xcode configuration to SnowLeopard64 for all platforms since the
 Lion64 and MLion64 configurations do not appear to be fully implemented
 (SnowLeopard64 is what the official CRAN binary uses).

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Ticket URL: <https://trac.macports.org/ticket/39188#comment:3>
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