[PATCH] SVG: text elements and graphic elements should not share style ids

[Christina Roßmanith]

...because the text style gets some properties added after style id 
lookup. That leads to a stroke="none" and fill="none" style for a 
rectangle following a text element with identical style.

With this patch the rectangle gets its own styleid and is rendered 
correctly  :-)

This is another step towards rendering coords-trans-03-t.svg as 
expected...next step: text placement.

Christina