Include database and rabbitMQ setup details in README

[SolomonShorser-OICR]

There should probably be a document somewhere that explains how to set up the database and rabbitMQ. Some new users are trying to run the code tests and it fails if they don't know they need to set up the database and message queues.

[denis-yuen]

This is true.
I think for this project we only got as far as the Travis-CI config displaying everything needed https://github.com/Consonance/consonance/blob/develop/.travis.yml but didn't get around to describing it in text too.

[briandoconnor]

I added docs to the README on my feature branch. Pull request coming.

https://github.com/Consonance/consonance/blob/feature/boconnor_wdl_workflow_improvements/README.md