Just a quick heads-up that I've converted SPDocument to a real C++ class -- that is, rather than being allocated and initialized using GObject, the normal C++ facilities are used (in this case the class is also now managed by the garbage collector).

I had expected this to break some things, but with testing it looks like the code that had depended on deterministic freeing that I had been worried about has been cleaned up. I've gone ahead and comitted, but let me know if anything broke that I couldn't find...

I do still need to convert the various document functions into member functions, and make SPDocument an abstract interface. Probably it will get renamed to Inkscape::Document too.

-mental