removed default initialization check, people must use gtk_type_init();

removed default initialization check, people must use gtk_type_init();

Sun Nov 29 06:12:01 1998  Tim Janik  <timj@gtk.org>

        * gtk/gtktypeutils.c (gtk_type_unique): removed default initialization
        check, people must use gtk_type_init();

        * gtk/gtkwidget.h:
        * gtk/gtkwidget.c: added gtk_widget_set_composite_name() which is meant
        for internal use by containers, that want to assign specific composite
        names to their composite children.
        added gtk_widget_get_composite_name() which will return a newly
        allocated string, containing the composite name of a widget. valid
        composite names can only be retrived from widgets that have a parent
        assigned and are flagged as GTK_COMPOSITE_CHILD.

        * gtk/gtkcontainer.h:
        * gtk/gtkcontainer.c: added a new function
        gtk_container_child_default_composite_name() which will return a
        newly allocated string, holding the composite name of a containers
        child. a default implementation is provided which will compose the
        composite name out of the widgets type and its sequential children
        id. this implementation can be overidden through a new class function
        *(composite_name)().