Project XML is retired

Project XML's subprojects have moved elsewhere. Xml-cocoon has moved to Project Cocoon. Xml-commons has moved to Project Xerces. Xml-xalan-c has moved to Project Xalan. Xml-xalan-j has moved to Project Xalan. Xerces-c has moved to Project Xerces. Xerces-j has moved to Project Xerces. Xerces-p has moved to Project Xerces. Xml/xmlbeans has moved to Project XMLbeans.