Start standing up pydotorg production

- Note machines allocated for this
- Create a prod recipe. ** I don't like this, but I want to get this working asap. **
- Create prod web role
- Create prod elasticsearch role
- Setup load balancer for pydotorg-prod-web
- Inject settings module into gunicorn env (instead of hardcoding in template)
Refactor pydotorg-redesign cookbook

- Consolidate to one recipe
- Set up the notion of an env
- Use roles to logically seperate env
Ensure apt-key update runs directly after adding the repo
Rename databag item
Merge pull request #95 from python/prod_pydotorg

Start standing up pydotorg production