netlog auto-restart after config changes leaves two instances running

[donald]

This very old script uses Donald:Tools:kill_previous_server() to clean up the old instances but this function has special code to avoid killing the parent, assuming that is an init.d script with the same name.

But this logic doesn't play well with the --foregound option we are now using. With this option, the old daemon is the parent of the new one and thus isn't killed.

All builtin daemon code should be removed and all this left to systemd.