Fix SVG being rendered too big in WebDialog/MSIE
Fix SVG being rendered too big in WebDialog/MSIE

SVG images were not scaled correctly. Their viewport conformed to the
specified width/height but the image content was rendered at the SVG's
native size and cropped to the image viewport.

Aerilius/sketchup-console-plus,Aerilius/sketchup-console-plus,Aerilius/sketchup-console-plus