Rudimentary CloudCafe Support

Still getting it completely off the ground and it could use a bit of refactoring, but I wanted to sync up with the main repo so that we could be on the same page.
If you're referring to the CAFE_ thing, openCAFE actually expects its environment variables to be defined like [this](https://github.com/stackforge/opencafe/blob/master/cafe/engine/models/data_interfaces.py#L73).