tezos-node
* Use subcommands: * `tezos_node run` * `tezos_node config` * `tezos_node identity` * Regroup all on-disk data in `--data-dir` * Split `Node_main` in multiple files. * Add DNS resolution for `--net-addr` and `--rpc-addr` * Hardcode `bootstrap.tezos.com` as bootstrap peer(s) * Add `--no-bootstrap-peers` * Rename `--expected-connections` -> `--connections`