added <!Doctype Bassyst> to export files

kernel/DataAudio_IO/private/getDocNode.m

@@ -3,7 +3,11 @@ function docNode = getDocNode(transFunc, inputImp, bsName)
 xml = getXMLStrings();
 
 docNode = com.mathworks.xml.XMLUtils.createDocument(xml.DocType);
+domImpl = docNode.getImplementation();
+doctype = domImpl.createDocumentType(xml.DocType, [], '');
+docNode.appendChild(doctype);
 docRootNode = docNode.getDocumentElement;
+
 % docRootNode.setAttribute('attr_name','attr_value');
 
 versionNode = docNode.createElement(xml.Version);