[gtkmm] Created tag 2.99.6

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '2.99.6' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Wed Mar 16 12:58:08 2011 +0100

    2.99.6

Changes since the last tag '2.99.5':

Fabien Parent (1):
      Gtk::CssProvider: Simplify the load_from_data method.     Simplify the load_from_data method by removing the useless size parameter.

Luca Wehrstedt (1):
      Fix bug #582981 by making TreeModelFilter behave like TreeModelSort.

Murray Cumming (10):
      Gdk::Rectangle: Added reference documentation.
      CssProvider: load_from_data(): Added documentation.
      Added class overview documentation for new classes.
      Window: Added unset_application,
      Gtk::Main: Add a constructor with no argc and argv.
      Main: Improve the documentation.
      Added TODO comments.
      TreeView: Removed unused TreeView::_get_base_model() method.
      Fix the demos
      2.99.6