Version	Date            Comments
=======	====            ========

1.1     23/01/94        o Added ambiguous move detection during import.
                        o Stopped the removal of hyphen characters from
                          player names during import.
                        o Added name-processing to conform to PGN standard.

1.2     24/01/94        o Added -I flag.
        27/01/94        o Added check for illegal moves due to "discovered
                          check".

1.3     01/02/94        o Compliance with PGN specification 1994.01.30:
                          1) Support for Numeric Annotation Glyphs (NAGs).
                          2) Add space between move number and move.
                          3) Output "SetUp" tag-pair for partial positions.
        03/02/94        o Added export format specifier "pgn_no_nag".
        08/02/94        o Documented compliance with PGN specification
                          1994.02.06.

1.3a    03/03/94        o Fixed conversion of escaped backslash (\\) back
                          into single backslash (as with escaped double
                          quote).

1.3b    09/04/94        o Added conversion of '_' to '-' when exporting to
                          PGN, and '-' to '_' when importing.

1.3c    30/04/94        o Added tidying of string (removing multiple/trailing
                          spaces) for Event, Site, White, Black and Annotator
                          tag-pairs during importing.
                        o Removed the need to have a single dot after the
                          White move number.

1.3d    18/08/94        o Fixed bug when importing unfinished game ("*");
                          the result used to be set to "1-0", rather than
                          "=".

1.3e    14/09/94        o Added code to enforce 180-move limit.

1.3f	21/09/94        o Added -E option to allow 180-move limit not to be
                          enforced (Atari-ChessBase can apparently handle
                          games with 180-moves or move)
