Make vdsm compile and install (still to be tested)

Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>
fence-agents: created. dhclient: added as vdsm dep.

Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>
Updated readme.

Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>