Features:
-* move notify sockets to the file system, so that PrivateNetwork= doesn't conflict with sd_notify() usage
+* make MountFlags= useful as a simple switch to disconnect mount propagation
* add bus api to query unit file's X fields.
* support transient mount units
-* Imply DevicePolicy=closed when PrivateDevices= is used
-
* add an "input" group to udev logic and add all input devices to it
* machined: provide calls GetMachineByAddress() on the manager