+CGroup Rework Completion:
+
+* systemctl user.slice doesn't show the full tree?
+
+* introduce "mainpid" for scopes
+
+* implement system-wide DefaultCPUAccounting=1 switch (and similar for blockio, memory?)
+
+* implement per-slice CPUFairScheduling=1 switch
+
+* handle jointly mounted controllers correctly
+
+* logind: implement session kill exceptions
+
+* fix machine regstration to forward property array
+
+* make BlockIODeviceWeight=, BlockIODeviceBandwidth= runtime settable
+
+* split up BlockIOWeight= and BlockIODeviceWeight=
+
+* introduce high-level settings for RT budget, swappiness
+
+* man: document new bus apis
+