Metacat

changed location of catalog file to config parameter

created options file for MetaCatServlet

added catalog loading code

fixed DBSimpleQuery after doctype additions done by Jivka

Fixed package bugs in new Entity and comment handling code, updated Makefile

Fixed package bugs in new Entity and comment handling code, updated Makefile

Included new features about writing XML documents into db
This includes writing data into db XML Catalog, document data into xml_documents,
comments into xml_nodes, added nodeindex for the order of elements by given parent element.

XMLValidate added to same package as MetaCatServlet

GenericXMLValidate added to same package as MetaCatServlet

MetaCatServlet Modifications for XML Validation;