Features:
+* journald: _BOOT_ID triggers too many collisions.
+
* journald: we currently rotate only after MaxUse+MaxFilesize has been reached.
* reexec journald across initrd transition
* Document:
- PID 1 D-Bus API
- - Update Syslog Interface docs
- Journal C API manual pages
* wiki: document logind's PreparingForShutdown, PreparingForSleep