remove add mon modules

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
do mon status at the end

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
call ceph-mon in hosts.common

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
import mon_add from common

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>