Starting the SGML part before adding the ChessGML specs.
CGML will begin with converting ChessGML DTD to XSD.
Converted chess.dtd to chess.xsd with W3C perl script.
Converted chess.flat.dtd to chess.flat.xsd with W3C perl script.
Converted names.dtd to names.xsd with W3C perl script.
Original sample XML from ChessGML, uses DTD.
Possible conversion to valid schema using XML.
Merge pull request #1 from Hasimir/master

initial xml: dtd2xsd conversion