Features:
+* clean up date formatting and parsing so that all absolute/relative timestamps we format can also be parsed
+
+* introduce hybrid-sleep.target
+
* _SOURCE_MONOTONIC_TIMESTAMP entries from the kernel seem to be off by 1000000
* document unit_name_mangle()
- how to pass throw-away units to systemd, or dynamically change properties of existing units
- how to integrate cgconfig and suchlike with systemd
- resource control in systemd
- - inhibiting
- testing with Harald's awesome test kit
- - restart
+ - auto-restart
* allow port=0 in .socket units