Updating to v0.5.2 in librabbimq-c
0.007000 - 2014-11-03
Major version 0.00700, re-factoring of several key internals.
    - Major re-factoring done to how Perl-to-C type inferences are done
    - Most AMQP header data types from AMQP into Perl should be supported.
    - Upgraded the librabbitmq-c version to the latest stable v0.5.2
    - Nested headers are now working
Adding version v0.5.2 for librabbitmq-c
Ack, now we're on the right version of rabbitmq-c
Incremented version in RabbitMQ.pm
So... in Perls 5.10 and below an SVt_IV and an SVt_RV aren't the same, but beyond they are. This is a compatibility fix for that.
So, SVt_IV and SVt_RV are the same sometimes (beyond 5.10).
Okay, so I forgot that since they're the same you can't use both of them in a switch when they are.
Added a comment to explain the conditional.
Handling the references separately?
Fixed things up for 5.8.8, hopefully 5.10 as well.
Merge pull request #25 from manchicken/master

Version 0.007000 is ready