#32015: rabbitmq-server: update to 2.7.0

[Steve Powell]

Please could someone commit the update to rabbitmq-server for version
2.7.0:

https://trac.macports.org/ticket/32015

Thanks,
Steve Powell  (a happy bunny)

----------some more definitions from the SPD----------
avoirdupois (phr.) 'Would you like peas with that?'
distribute (v.) To denigrate an award ceremony.
definite (phr.) 'It's hard of hearing, I think.'
modest (n.) The most mod.