sd-dhcp-client: fix mixup between raw and udp sockets
bus: fix unreffing logic
build-sys: export experimental symbols only with --enable-kdbus
build-sys: enable compat-libs for distcheck
build-sys: bump release in preparation for release
build-sys: install experimental man pages only with --enable-kdbus
udev: net-config - allow interface names to be set from the hwdb
sd-bus: the bus returned should be the first arg

This matches the API of previous headers, such as sd-journal.h.
api: in constructor function calls, always put the returned object pointer first (or second)

Previously the returned object of constructor functions where sometimes
returned as last, sometimes as first and sometimes as second parameter.
Let's clean this up a bit. Here are the new rules:

1. The object the new object is derived from is put first, if there is any

2. The object we are creating will be returned in the next arguments

3. This is followed by any additional arguments

Rationale:

For functions that operate on an object we always put that object first.
Constructors should probably not be too different in this regard. Also,
if the additional parameters might want to use varargs which suggests to
put them last.

Note that this new scheme only applies to constructor functions, not to
all other functions. We do give a lot of freedom for those.

Note that this commit only changes the order of the new functions we
added, for old ones we accept the wrong order and leave it like that.
update TODO
build-sys: add linkwarning.h to tarball
build-sys: install compat .pc file
build-sys: missing EXTRA_DIST
NEWS: fixes that probably should have been made before the 209 release
core/unit: fix unit_add_target_dependencies() for units with no dependencies

For units without any dependencies, r needs to be initialized to 0.
Otherwise, the return value of unit_add_target_dependencies() is
unspecified.
readd journald.so install hooks under libsystemd.so

Inadvertently removed in add00dfd1f05.
libsystemd: fix compiler warning in property_get_set_callbacks_run()

gcc (4.8.2, arm) doesn't understand that vtable_property_get_userdata()
will always set 'u' when it returns > 0. Hence, the warning is bogus,
but anyway.

  src/libsystemd/sd-bus/bus-objects.c:510:19: warning: 'u' may be used uninitialized in this function [-Wmaybe-uninitialized]

(and yes, indeed, even the reported line numbers are bogus in this case)
journal: fix compiler warning in real_journal_next()

gcc (4.8.2, arm) does not understand that next_beyond_location() will
always set 'p' when it returns > 0. Initialize p in order to fix this.
journal: fix compiler warning in journal_file_append_data()

gcc (4.8.2, arm) does not understand that journal_file_append_field()
will always set 'fo' when it returns 0, so this warning is bogus.

Anyway, fix it by initialiting fo = NULL.
util: get rid of warnings around assert_cc() macro

Suggested by Holger Schurig.