* exec: when deinitializating a tty device fix the perms and group, too, not only when initializing. Set access mode/gid to 0620/tty.
-* udev: only reset mode/gid of /dev/tty1 and friends on ACTION=add, not ACTION=changed
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* DeviceAllow/DeviceDeny: disallow everything by default, but whitelist /dev/zero, /dev/null and friends
* service: watchdog logic: for testing purposes allow ping, but do not require pong
* Add a verbose mode to "systemctl start" and friends that explains what is being done or not done
-* "systemctl is-failed" to join "systemctl is-active" and "systemctl is-enabled".
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* journal is not closed properly at shutdown when run in a container?
* All log messages generated from socket.c, service.c, ... should