[Cooker] Cooker client install and ipvsadm

[Andrej Borsenkow]

I have installed cooker with client package groups only (all server
packages were disabled). Still, I got ipvsadm that obviously belongs to
server part (Linux Virtual Server). I noticed it because startup script
fails (under Aurora it fails very ugly, without even identifying itself,
just outputs some garbage). And it fails because my /etc/sysconfig/lvs is
epmty (comments only).

Of course, it is no error condition and script should not fail. Anyway,
what has Linux Virtual Server to do on *client* computer?

-andrej