Added link to development-infrastructure docs at the end of building-the-code docs to walk contributors to the next step of serving Fleet locally.
Added --auth_jwt_key="insecure" flag to fleet serve command in development-infrastructure docs.
Individuals unaccustomed to building Go projects from source may encounter difficulties cloning into the repo if they choose an arbitrary directory not in ~/go/src. Attempting to build the repo elsewhere will result in the `make deps` command failing. This change adds workspace prep instructions.
I think these were useful when none of us knew how to use glide except
@groob and needed copy-pasteable commands to run, but this seems like
it's much less useful now.
* add graceful server shutdown
Also refactors server to use `http.Server` instead of the global
http.ListenAndServe method. In the future it allows us to set
ratelimits and timeouts for http connections.
