2001-11-09  Michael Natterer  <mitch@gimp.org>

	* app/undo.c: should set the fs.backing_store TileManager pointer
	to NULL after deleting it. Why the heck didn't this crash
	before...?

	* app/core/Makefile.am
	* app/core/gimpdrawable-blend.[ch]: the blend stuff taken from
	the blend tool.

	* app/core/core-types.h: added the blend enums.

	* app/tools/gimpblendtool.[ch]: removed the stuff here.

	* tools/pdbgen/pdb/tools.pdb: changed blend wrapper accordingly.

	* app/pdb/tools_cmds.c: regenerated.

	* tools/pdbgen/Makefile.am: don't scan tools/gimpblendtool.c.

	* tools/pdbgen/enums.pl: regenerated.

	* app/tools/gimpbucketfilltool.c: fixed crash caused by my last
	change.

	* app/display/gimpdisplay.c
	* app/display/gimpdisplayshell-callbacks.c
	* app/display/gimpdisplayshell.c: removed lots of uglyness by
	using GtkImages for the qmask and navigation buttons. Don't realize
	anything before the shell is shown. Connect the realize
	callback and do stuff there. Don't call the realize callback
	from gimp_display_shell_canvas_events() any more.

	* pixmaps/navbutton.xpm
	* pixmaps/qmasknosel.xpm
	* pixmaps/qmasksel.xpm: removed.

	* themes/Default/Makefile.am
	* themes/Default/images/Makefile.am
	* themes/Default/images/stock-menu-navigation.png
	* themes/Default/images/stock-menu-qmask-off.png
	* themes/Default/images/stock-menu-qmask-on.png: new PNGs instead.

	* libgimpwidgets/gimpstock.[ch]: register them as stock icons.