Explore capistrano for deploys

Currently we're deploying with Chef itself. It might make more sense to deploy with Capistrano, with the idea being that we can deploy to the configured vagrant VM in the same way that we would deploy to a remote server.

So basically, use Chef to set up the server environment from scratch, but use a real deploy tool to send the set up the actual Drupal app.

Definitely requires way more thought, but just wanted to throw it out there