Features:
+* prefer /etc over /run?
+
* when dumping cgroup contents, include main/control PID of a service, explicitly
* keep an eye on https://bugzilla.gnome.org/show_bug.cgi?id=670100
* isolate for getty is still broken, due to logind
-* don't umount /usr
-
* default unix qlen is too small (10). bump sysctl? add sockopt?
* support units generated by a generator and placed in /run/systemd/system/; the directory is
currently ignored because it is empty before the generatores are executed
-* let 'systemctl reboot' called as non-root talk to logind instead of systemd, to get polkit
- system policy in the loop of privilege checking, so normal users can possibly use /sbin/reboot
-
* Possibly, detect whether SysV init scripts can do reloading by looking for "echo Usage:" lines
* figure out whether we should leave dbus around during shutdown