Metacat

Added fix to DocumentImpl that showed problems when the DocumentImpl(conn)
constructor was called. Now there is a new constructor:
DocumentImpl(Connection, String, boolean)
where the boolean value is used to determine if the nodeset should be
read a t the time the cosntructor is called. if false, then...

Completely removed the socket-server feature that used to provide
file upload. It is now replaced by multipart/form-data over http.

Modified Metacat to support large data file uploads. This is accomplished
by supporting a new content type for data sent to metacat:
multipart/form-data
which allows multiple files to be sent in a standard MIME format. The
MetacatServlet.handleGetOrPost() method now checks the incoming content...

Simplified ReplicationHandler:
It is run now in the same thread started from DBSAXHandler;
thus the same connection opened in that thread is used,
i.e. no need for new connection and no complains as "Connection is closed" in ReplicationHandler;
"Connection is closed" error happens when in the current thread there are try to use connection opened in another thread,...

tests made on Oracle and SQL Server.

support for the new terms included in pathquery.dtd

included new terms for searchmode:
equals (former matches-exactly)
isnot-equal
less-than
greater-than
less-than-equals
greater-than-equals

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=248
Included utility function about gettig the latest docid for a user:
DBUtil.getLastDocid(username).
Metacat parameters:
action='getlastdocid'
username

don't need to override the old meta_file_id tags with docid without rev
since Morpho inserts docids before sending the docs to Metacat

added the new software module