Features:
+* add conditions for file executability
+
+* allow creating fifos with tmpfiles
+
+* implement Register= switch in .socket units to enable registration
+ in Avahi, RPC and other socket registration services.
+
+* Remove kill_mode parameter to kill bus calls
+
* Fix nspawn to not read-only mount /selinux on the host system
* make sure people don't leave processes around after ExecStartPre=