[MacPorts] #53523: rainbarf: update to 1.4

[MacPorts]

#53523: rainbarf: update to 1.4
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 Reporter:  creaktive  |      Owner:
     Type:  update     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.4.0
 Keywords:  haspatch   |       Port:  rainbarf
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 rainbarf 1.4 released in September 2016, and MacPorts still has 1.1

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Ticket URL: <https://trac.macports.org/ticket/53523>
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