virAdm is prefix only used on the client side. Or at least for now. On
server, though, this corresponds to virNet structures (virAdmConnect is
virNetDaemon, virAdmServer should be virNetServer, in the future
virAdmClient will be resolved to virNetServerClient, and so on).
This will also make future work clearer and easier.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>