fsousaged: dbus_service: fix two bugs with resource status update handling
fsousaged: dbus_service: fix two bugs with resource status update handling

- resource send two status updates when requested by a user; one with refcount = 0 and one
  with refcount = 1 (but status still the same)
- resource send no status update when it's requested by more than one user and one of this
  disappeared or released the resource

Signed-off-by: Simon Busch <e923d8431f09840b119134ca71ec8d74989d15cc@gravedo.de>

slyon/debian-fso-deviced,slyon/debian-fso-usaged,slyon/debian-fso-deviced,slyon/debian-fso-usaged