Metacat

changed naming scheme

changed naming scheme

changed naming scheme

servlet to handle metacat replication requests.

a timer based thread that does Delta-T replication checking.

a parser to handle replication xml messages

change for using the db connection

Updated the Javadoc documentation so that the current release can be provided
on the web site.

Fixed problem with AuthInterface, AuthLdap, and AuthMcat where the
sigantures of the methods of these classes were not in agreement, which was
causing AuthLdap to no longer compile. Changed parameter signatures so that
the 'user' parameter is used consistently in all of the methods.

bug fix about util.openDBConnection() for xmlIndex tread