17034 - MCollective Async Result Handling doesn't work as expected with RabbitMQ

In order to process async style requests where the request has a reply
that indicates a different destination the request must have correct
reply-to headers set.

Previously the connector did not set this when a custom reply-to address
was specified in the message, this commit fixes that.
17034 - MCollective Async Result Handling doesn't work as expected with RabbitMQ

Provide test coverage and changelog