bus: fix deserialization of polkit response
logind: fix serialization of ListInhibitors() request
logind: fix serialization for PrepareForSleep boolean
nspawn: log out of memory errors
bus: add sd_bus_message_read_strv()

It will be useful to have that in the public API.
bus: make use of assert_return() in all API calls that don't use it yet
bus: add new bus API call sd_bus_message_at_end()

This may be used to determine whether we are at the end of a container
ot the entire message.
Configurable Timeouts/Restarts default values

https://bugs.freedesktop.org/show_bug.cgi?id=71132

Patch adds DefaultTimeoutStartSec, DefaultTimeoutStopSec, DefaultRestartSec
configuration options to manager configuration file.
man: fix typo
logind: automatically determine client side PID if GetSessionByPID() is called with a PID == 0
bus: add sd_bus_get_current() bus call to determine message that is currently being dispatched
update TODO
logind: add virtual object paths that always can be used to refer to the callers session, user, seat or machine object

This way clients can skip invoking GetSessionByPID() for their own PID
or a similar call to access these objects.
update TODO
bus: never report nodes as children that do not have the right prefix
login: port test-inhibit to libsystemd-bus
man: do not use <term> in <para>

Element term in namespace '' encountered in para, but no template matches.
build-sys: remove CFLAGS default assignment
bootctl: typo fix in help message
hostnamed: prevent it from crashing if the chassis is unknown

When fallback_chassis would return null it led to a crash and an
empty result in hostnamectl. Only seen after the sd-port.