Use the app cookbook to deploy the app.
Merge pull request #40 from coderanger/appcookbook

Use the app cookbook to deploy the app.
Add formal deps even though chef-solo doesn't care.
Run the migrate.
Merge pull request #42 from coderanger/appcookbook

Two small fixes to the app deploy.
Keep the current hostname during redirects.
We are only booting a single listener for now, unicorn handles concurrency internally.