Features:
+* show failure error string in "systemctl status"
+
+* send SIGCONT before SIGTERM
+
+* make sure timeouts are applied to Type=oneshot services.
+
* maybe implement "systemctl mask" and "systemctl unmask", but not
document it? When doing that add switch to make this temporary by
placing mask links in /dev.
* invoke vhangup() before and after invoking getty
-* skip readahead on physically r/o media
-
* support "auto" and "comment=systemd.automount" at the same time for an fstab entry
* Make use of UnknownInterface, UnknownObject