Add RabbitMQ support

[Maksold]

DISCLAIMER: yeah, this means that the jobs don't get executed immediately, but no worries. We have plans to add support to RabbitMQ as a real-time message consumer ;)

Do you plan to add a RabbitMQ?

[ivanaugustobd]

I won't spoil the fun but we have a new major release being planned for a few months from now, I'll update here accordingly when that happens ;)