2001-08-10  Michael Natterer  <mitch@convergence.de>

	* app/nav_window.c: fix compiler warning.

	* app/core/gimp.[ch]: added gimp->documents which will be an MRU
	list of GimpImagefile objects.

	* app/core/gimpcontainer.c: added some g_return_if_fail().

	* app/gui/palette-editor.c: use GtkImage instead of GtkPixmap,
	s/gtk_signal_*/g_signal_*/.

	* app/widgets/gimppreview.c: render the checkerboard only for
	channel == -1. In particular, don't render it for channel
	previews.

	* app/module_db.c
	* app/core/*.c
	* app/gui/colormap-dialog.c
	* app/tools/gimpairbrushtool.c
	* app/tools/gimpdodgeburntool.c
	* app/tools/gimpeditselectiontool.c
	* app/tools/gimperasertool.c
	* app/tools/gimppaintbrushtool.c
	* app/tools/gimppenciltool.c
	* app/tools/gimpsmudgetool.c
	* app/tools/tool_manager.c
	* app/widgets/*.c
	* libgimpwidgets/*.c: s/gtk_type_new/g_object_new/