lan_rate_stream::cleanup

Source: stream/rate/Lan/lan_rate_stream__cleanup.pro

 lan_rate_stream::cleanup
        Destructor for a lan rates stream class.

 History:
        Original: 23/11/99; SJT
        Add handling of refcounts: 7/1/00; SJT
        Abstracted the ephemeris stuff to the ephemeris helper class:
        7/2/00; SJT