2001-12-02  Sven Neumann  <sven@gimp.org>

	* app/plug-in/plug-in.c: use g_tree_foreach() instead of deprecated
	g_tree_traverse().

	* app/undo_history.c
	* app/display/gimpdisplayshell-selection.c
	* app/display/gimpdisplayshell.c
	* app/gui/about-dialog.c
	* app/gui/color-area.c
	* app/gui/color-select.c
	* app/gui/gradient-editor.c
	* app/gui/gui.c
	* app/gui/paths-dialog.c
	* app/gui/user-install-dialog.c
	* app/tools/gimpcurvestool.c
	* app/tools/gimpinktool.c
	* app/widgets/gimpcursor.c
	* app/widgets/gimpnavigationpreview.c
	* libgimpwidgets/gimpchainbutton.c
	* libgimpwidgets/gimppixmap.c
	* plug-ins/common/animationplay.c
	* plug-ins/common/uniteditor.c
	* plug-ins/ifscompose/ifscompose.c: s/gdk_gc_unref/g_object_unref/,
	s/gdk_drawable_unref/g_object_unref/