DIRT-3      Changes & additions from DIRT-2  (Winter 1991/spring 1992)
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  DIRT-2 was rewritten from a one-process-per-player mud to a 
  one-process mud by Alf, which makes it DIRT-3.
  There is no longer one process per player communicating thru a shared
  data space. Large parts of DIRT-3 was made from scratch, the changes are
  too extensive to be decribed in detail here.