Metacat

This allows for the easy handling of metacat:// urls. The documentation in the source code explains the specification for the url in detail.

Added functionality for package specifications. metacatservlet now contains a new action called getrelateddocument that handles retrieving related documents using the metacatURL specification (metacatURL.java). DBQuery contains new code in runQuery that embeds relation tags in the returned hashtable describing the documents related to each docid. querySpecification contains a new method which prints the sql that does the relation query.

store generated Access# in meta_file_id tag if there are any

fix bug in toXML() about getting output of XML document like:
<paragraph

added parentnodeid to xml_index

fix for "Document not found" err message on "getdocument" action

fix for "public" authentication

removed print statments

fixed xml tag error in squer

fixed bug in handleSQuery that returned the tag in the <query> tag of a resultset.
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