Chema Celorio <chema@ximian.com>

Thanks to :

Michal Palczewski <mpalczew@u.washington.edu> - Widget tree window

Archit Baweja <bighead@users.sourceforge.net> - New widgets, _get_type

Shane Butler <shane_b@operamail.com> - Glade Widget signals editor

Tristan Van Berkom <tvb@gnome.org> - Non widget support.