[READY] Use queue name instead of queue url

Currently we use the url to identify a queue. This causes problems when using local development tools such as [spurious](https://www.github.com/stevenjack/spurious) as the host and port can change periodically.

Using the `queue.named()` method is a more robust solution as it allows us to omit all the host details from the config and only reference the queue by it's name.