June 11, 2004 -- 1.9.4:
    - FileStream for accessing XML files as a stream.
    - Disco is much better behaved.
    - Presence database cleans up more nicely on session disconnect
    - Ability to add/extend XPath functions
    - More doxygen strings.
    - Many bugfixes and cleanups.

June 10, 2003 -- 1.9.0 released, primary new features:
    - XPath support
    - Disco support
    - Uses the latest sigc++
