rgmanager: Fix dependency issue related to ordering
    
    If you ordered two services the opposite way in cluster.conf
    ('b' first, which depends on 'a'), then rgmanager would fail
    over 'b' despite the fact that 'a' was not running yet - this
    is because the state of 'a' was not set to 'stopped' - so we
    need to check for a node-death event in move_or_start().
    
    Resolves: rhbz#743214
    
    Signed-off-by: Lon Hohberger <lhh@redhat.com>