Log Message:
Update to 2.12.0:

In Lablgtk-2.12.0:
2008.12.20 [Jacques]
 * fix build process for ocaml 3.11 on MSVC and mingw.

2008.12.09 [Jacques]
 * fix ml_gtk_source_buffer_create_marker

2008.10.30 [Benjamin]
 * Support Gtk Quartz backend compilation (thanks to Pascal Cuoq)
2008.10.07 [Benjamin]
 * Revert last change on GEdit.entry_completion according to M. Clasen.
   Keeping the new type for the callback match_selected.
2008.10.05 [Benjamin]
 * Change type of model contained in GEdit.entry_completion from
   model to model_filter see
   http://bugzilla.gnome.org/show_bug.cgi?id=555087.
2008.09.10 [Benjamin]
 * Many custom tree model bugs fixed.

2008.09.04 [Benjamin]
 * First attempt to support custom_tree_models in GTree.
   I need some feedback on ways to improve the safety.
   An example of usage is given in examples/custom_tree.ml
   Part of the code comes from Robert Schneck: he agreed by private mail
   on relicensing it for lablgtk2.

2008.08.20 [Jacques]
 * Move model to head of properties in ComboBox
   (bug reported by Pierre-Marie Pedrot)

2008.08.03 [Benjamin]
 * Support for wrapped signal of GEdit.spin_button (Gtk 2.10)

2008.08.01 [Benjamin]
 * Support for GtkRendererAccel of Gtk 2.10

2008.07.26 [Benjamin]
 * Add a few 2.10 properties GAction.icon_name, GButton.image_position,

2008.07.25 [Olivier]
 * don't use G_QUEUE_INIT (dependency on glib 2.14)

2008.07.25 [Jacques]
 * Add [widget] to Gtk.file_chooser
 * configure did not work on FreeBSD

2008.05.09 [Benjamin]
 * Add Glib.Io.read_chars. Other g_io_* function could be added...

2008.04.14 [Olivier]
  * use Gc.create_alarm to delay GObject finalization instead of an idle function

2008.03.31 [Benjamin]
  * Support mingw compilation with OCaml 3.11. Still tricky...

2008.03.25 [Jacques]
  * add GtkWindow properties
  * add GMain.Event
  * add GtkMenu.Menu.popup_at

2008.03.22 [Benjamin]
  * prepare gtksourceview 2.1 support