/* $DOC$
   $NAME$
      ft_SaveSets()
   $CATEGORY$
      Environment
   $ONELINER$
      Save the status of all the SET command settings
   $SYNTAX$
      ft_SaveSets() -> aOldSets
   $ARGUMENTS$
      None
   $RETURNS$
      An array containing the values of the supported SETs.
   $DESCRIPTION$
      This function saves the SET Settings, i.e., it copies them into an
      array, aOldSets.  The following SETs are not currently supported:
      FILTER, FORMAT, FUNCTION, INDEX, KEYS, MODE, ORDER, PROCEDURE,
      RELATION, TYPEAHEAD
   $EXAMPLES$
      aOldSets := ft_SaveSets()
   $SEEALSO$
      ft_RestSets(), ft_SetCentury()
   $END$
 */