SVGSlice now works directly within Inkscape as an extension. Usage was simplified, removing guide-based slicing mode, so that rectangles on a slices layer is the only method users need to worry about.
The SVGGuideHandler has been updated to correctly parse files. The last release got mixed up with a slightly different copy, and this was broken as a result. Two more tests/examples have been added. The source code is documented much more heavily. There are more exception checks, better error reporting, and improvements to testing and debugging modes. There are improvements to coordinate checking and unit parsing. Unit conversion will be added soon; for now, make sure Inkscape uses one set of units throughout. There are other small changes and cleanups.
