- Refactored SvgElementFactory to use the new SvgElementAttribute to get available elements.

- Fixing #8494: Polyline fill being ignored. This appears to have been done on purpose (the Fill property was overridden to return null) but without reason. GIMP, Firefox 3 & Opera 9 all render the fill.

- Fixed [workitem:7526] whitespaces \t \r \n in path and points result in exception. The   SvgUnitCollectionConverter (SvgUnitCollection.cs) class had to split on \r, \t and \n aswell as ' ' and ','.