Added env stuff to simple deployment recipe

At the moment, the Soundcloud and Scribd stuff on http://dashboards.theodi.org/ is borked because we don't get the env stuff from the data bags. Have cargo culted the stuff from the main recipe and added tests, but my testing environment is borked, so I can't run tests. 

Sure it'll be fine, but @pikesley can you run the tests on your machine for us? If all is well, please merge :)