[MacPorts] #53563: nodejs7: Update to 7.5.0

[MacPorts]

#53563: nodejs7: Update to 7.5.0
--------------------------+---------------------
 Reporter:  sambthompson  |      Owner:
     Type:  update        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:                |       Port:  nodejs7
--------------------------+---------------------
 {{{
 $ port livecheck nodejs7
 nodejs7 seems to have been updated (port version: 7.0.0, new version:
 7.5.0)
 }}}

 Includes security fixes for OpenSSL.

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Ticket URL: <https://trac.macports.org/ticket/53563>
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