Freestyle SVG output module?

Hi all, I’ve the blender 2.5 version of Freestyle from Graphicall:
http://www.graphicall.org/builds/builds/showbuild.php?action=show&id=1273

I am interested on the SVG export render feature, but I cannot find any way for doing that and I haven’t seen any documentation about it.

Does anybody know about how to use it?

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