Do not unexport X11 functions on windows.
Work on the implementation and  API documentation of GTK+
Adding a reference
Adding a demo for GtkImage

The demo is a Lisp implementation of the corresponding GTK+ demo in C.
The Lisp implementation has been extended and modified to show the
usage of an event box.
Implementing the function gdk-pixbuf-fill
Implementing GdkPixbufLoader
Work on the GTK+ Tutorial for Lisp

* Move the examples for dialogs in a separate section.
* Add examples for GtkImage.
Adding the documentation for gdk-pixbuf-fill