Environment uploads

We can now do this:

    * the following environments have been updated:
      | environment | environment_path      |
      | production  | support/environments/ |

The environments have to be defined in json files called \<environment\>.json, like:

    {
      "name": "production",
      "cookbook_versions": {
        "nodejs": "0.1.0"
      }
    }

which is a little ugly, but I couldn't work out how to convert the regular .rb environment files into JSON. Does anybody know the best way to do this?