* Used SQL sequence instead of the db_sequence table.
* Add CSS.
* Add Search capabilities.
* Add default (dynamic?) tree expansion.
* Add XBel Export.
* Add support for icons.
* Add modified time.
* Add access/check time.
* Add user session support.
* Better unicode handling.
* Selection based bookmark manipulation.
* More user preferences.
* Clean up of all the code.  This is a real mess currently!
* Optimization of some code part.