2007-09-08  Hans Breuer  <hans@breuer.org>

	* lib/diasvgrenderer.[ch] plug-ins/shape/shape-export.c
	  plug-ins/svg/render_svg.c : based on analysis and patch by
	Dov Grobgeld the values written to SVGs are now scaled up, because
	many SVG interpreters don't cope very well with small values.
	The overall size of the image is kept by writing with and height in cm 
	but the viewBox scaled like the values in the file.
	For the Shape export the scale value is kept at 1.0 to avoid breaking
	Dia's Shape/SVG consumption. Fixes bug #316590
	
	* lib/dia_svg.[ch](dia_svg_parse_style) : allow to pass in user_scale	
	* plug-ins/svg/svg-import.c : implment some unit awareness and use it 
	to scale the input to Dia's internal cm. Adapt the user_scale with the
	viewBox as explained above. This not only gives almost correct 
	round-trip with Dia's own SVG writing, but also works better for the
	general case.
	* objects/custom/shape_info.c : adapt to API change


svn path=/trunk/; revision=3772