[MacPorts] #56833: py-Pillow: Update to 5.2.0, add Python 3.7

[MacPorts]

#56833: py-Pillow: Update to 5.2.0, add Python 3.7
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  Reporter:  radarhere    |      Owner:  stromnov
      Type:  enhancement  |     Status:  reopened
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  py-Pillow    |
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Changes (by reneeotten):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 the commit shouldn't close this ticket as py37 after this commit will not
 build (it's py37-olefile dependency doesn't exist), and also an update to
 version 5.2 was requested in this ticket.

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Ticket URL: <https://trac.macports.org/ticket/56833#comment:2>
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