wumpus-basic

Copperbox revision 1800.

Work on composing operations on the Image and Graphic types.

The code is very sketchy and I'm not quite sure what I've done, or how it works yet. I seem to have got normal functional application "back" by wrapping applicative functors in special applyTransformer functions. The new version of strokeConnector - the arrow building function is much less convoluted (and it can be simplified even more), but the machinery to make it is quite weird - lots of applicative operations and pairing functions.