+* add "loginctl unlock-sessions" as counterpart for "loginctl lock-sessions"
+
+* extend cgroup attr dbus calls to optionally make changes persistent, and retrieve current kernel values
+
+* support high-level cgroup setting syntax in systemctl. Example: "systemctl set-cgroup-attr MemoryLimit 5K"
+
+* add a man page "systemdall" that lists all of systemd's man pages, inspired by zsh's "zshall" page
+