wumpus-core

Copperbox revision 1628.

More work on SVG rendering. The output is still not correct - rotated affine frames are wrong. Possible the rotation needs inverting, but I can't readily do this as inverting the matrix would also invert any scaling that had been applied.

It looks like the current implementation is not going to support the SVG optimizations - I'll have to think whether this means creating a new implementation that can be optimized or not bothering about the optimizations and reverting to last week's checkpoint.