rgmanager: Fix dependency restart bug
    
    If we:
     - had a service with 'depend' set on another
       service,
     - both services were running on the same host,
     - that host died, and
     - the service which depended on the other service
       also had the 'restart' recovery policy,
    
    rgmanager would enter handle_start_req and return
    an immediate error - with no further recovery action
    performed.
    
    Resolves: rhbz#743442
    
    Signed-off-by: Lon Hohberger <lhh@redhat.com>