Update kernel and configurations to v3.16.0-rc3.

Moving to a new office, of course when i need to reboot anyway it's time
for a new kernel, too.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
overrides: Make expression for gajim more robust.

It might be that patches/postPatch will be no longer needed for the
upcoming Gajim version, so let's not assume these attributes are there.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>