svg status

[Keiron Liddle <ke...@aftexsw.com>]

Since it has been a while since the last one...

Improvements
-----------------
- handles external svg documents (through the FOPImage handling), for
svg documents referenced by image element and externally referenced defs
elements.
- whitespace in text
- handles tspan elements
- handles tref elements (except hierarchical styling)
- fixed image positioning
- general improvements with the code structure, svg element, document
handling
- fixed scaling

- now passes a few of the svg tests without any errors

Working on
---------------
- styling
getting the style attribute to use the css styling
using the style element for styling of elements using the various
selectors (eg. class, id, attrs etc.)

TODO
---------
- fixing up some of the things I have broken (gradients, awt, dotted
paths)