2003-09-20  Simon Budig  <simon@gimp.org>
            Dave Neary  <bolsh@gimp.org>

	First steps towards Libart stroking. Right now the code
	crashes and thus is disabled by default. If you want to
	test it, change the #define LIBART_STROKE  in
	app/vectors/gimpvectors.c. Then a click on the stroke button
	in the paths dialog invokes the new code.
	The crash is in gimpdrawable-stroke.c - apparently I did not
	yet get the TileManager stuff correctly.

	* app/core/gimpscanconvert.[ch]: Rewritten to be more clear
	and have an easier API. Now can handle open Paths and
	libart-stroke the (open/closed) polygons defined earlier.

	* app/core/core-enums.h: Added Enums for LineJoin-Type and
	EndCap-Type for stroking.

	* app/core/core-enums.c: regenerated.

	* app/core/gimpimage-mask-select.c: Use the new API of
	GimpScanConvert where appropriate.

	* app/vectors/gimpvectors.c: Added #define to enable the libart
	stroking. Disabled by default because of the crash mentioned
	above...

	* app/vectors/gimpbezierstroke.c
	* app/vectors/gimpstroke.c
	* app/vectors/gimpvectors.[ch]: Removed Libart stuff here.
	Libart usage now lives exclusively in GimpScanConvert.

	* app/core/gimpdrawable-stroke.[ch]: New files for the libart
	stroking (right now just vector objects).
	* app/core/Makefile.am: changed accordingly.

	* app/Makefile.am: Needed to tweak linking.  :-/