This is a revert of 1da5a removing actual deployments and keeping
only the dev environment in Tilt.
The clean-up was a bit heavy handed. We should keep the Helm
chart to the development repository and move away only the
deployment configuration.
Tilt is a tool for local Kubernetes development.
It makes it easy to see your changes as you
make them, and it rebuilds and redeploys
your app as you change it.
It is a great tool for local development
and testing of Kubernetes applications.