fix(fleetctl): Use os.Exit instead of syscall.Exit
fix(fleetctl): exit 1 on failures in debug-info
refactor(fleetctl): Return codes to outer-most levels
refactor(fleetctl): Drop unnecessary return statement
fix(fleetctl): exit 1 in start on failure
fix(fleetctl): exit 1 in submit on failure
fix(fleetctl): exit 1 in verify on failure
Merge pull request #268 from bcwaldon/fleetctl-exit-codes

Correctly exit from fleetctl
refactor(fleetctl): Relocate remote command code
refactor(fleetctl): Use local shortcut for status command
chore(gofmt): gofmt systemd/manager.go
bump(coreos/go-systemd): 8514b9fc57569e6dfc5e88a6411be351afcc69b4
feat(debug): Dump dbus subscriptions with agent state
Merge pull request #271 from bcwaldon/local-command

Reuse command driver code in `fleetctl status`
Merge pull request #272 from bcwaldon/dump-subscriptions

Dump dbus subscription info with agent state
style(fleetctl): add docstrings to readSSHChannel functions