/* $DOC$
   $NAME$
      ft_Easter()
   $CATEGORY$
      Date/Time
   $ONELINER$
      Return the date of Easter
   $SYNTAX$
      ft_Easter( <xYear> ) -> dEdate
   $ARGUMENTS$
      xYear can be a character, date or numeric describing the year
      for which you wish to receive the date of Easter.
   $RETURNS$
      The actual date that Easter occurs.
   $DESCRIPTION$
      Returns the date of Easter for any year after 1582 up to Clipper's
      limit which the manual states is 9999, but the Guide agrees with
      the actual imposed limit of 2999.

      This function can be useful in calender type programs that indicate
      when holidays occur.
   $EXAMPLES$
      ? ft_Easter( 1990 )     // returns 1990-04-15
   $END$
 */