Features:
+* when creating a session or machine, automatically move the process into the root cgroup for all other hierarchies
+
+* maybe reintroduce nspawn -C?
+
* move systemctl dump to systemd-analyze
* libsystemd-logind: sd_session_is_active() and friends: verify
RUNNING/LISTENING states of its socket
* slices:
- - add option to pam_systemd to move login session into a slice
+ - add option to pam_systemd to move login session into a slice (?)
- remove ControlGroup= setting
- in sd_pid_get_owner_uid() fallback to query session file
- add api to determine slice of unit