Deployment monitoring in Nomad v1.1.2

Tired: Repeatedly hitting the up arrow (or using watch) to get the current status of a Nomad deployment

Wired: Letting Nomad monitor the deployment for you when you run a job

It started with an RFC and ended with a big UX improvement to our CLI. And along the way I got to learn more about goroutines and terminal UIs.

Bonus: if your deployment fails and you have auto-revert enabled, Nomad will track the entire process for you so you don't have to dig around for the rollback deployment info yourself. Because the fewer commands you have to run, the better!