(Part 2) Remove gdk_*_lookup() defines, since they are defined by the

(Part 2) Remove gdk_*_lookup() defines, since they are defined by the

(Part 2)
	* gdk/gdkprivate.h: Remove gdk_*_lookup() defines, since they are defined by the
	individual backends already.
	* gdk/gdkregion-generic.h, gdk/gdktypes.h: Put gdkregionbox & gdksegment back together
	again. Yes, there really is a good reason for this, if you are using the gdkregion
	internals, and if you're not, why do you care?
	* gdk/gdkwindow.c: Fix inverted condition
	* gdk/linux-fb: Compiles (for me - it will not work elsewhere most likely).
	* gtk/gtkcolorsel.c, gtk/gtkwindow.c: Add include for linux-fb
	* gtk/gtkrange.c: Redraw trough when moving.
	* gtk/gtktypeutils.c: Fix warning by adding const cast.
	* modules/linux-fb/basic.c: Fix unknown glyph retrieval.