wumpus-core

Copperbox revision 1678.

Some work adding Haddock docs to the Text Encoding modules. Although the haddock docs are for internal functions and won't get built, I had forgotten how the encoding code works so they comments will still be useful.

Also I've started work on extending Labels to allow layout control of individual characters. SVG allows text elements to have coordinate lists rather than just a start point. Making use of this would be much more efficient than making each character a separate label, which is currently how you have to do it in Wumpus.