Reorder code so that we don't get a g_warning message every time we

Reorder code so that we don't get a g_warning message every time we

	* gtk/gtkiconfactory.c: (gtk_icon_size_register): Reorder code so
	that we don't get a g_warning message every time we register a new
	icon size.

	* gdk/x11/gdkcolor-x11.c: (gdk_colormap_alloc1): Fix warning by
	using pixel variable of the correct type.