wumpus

I've been without internet access for a few days, so while I've still been working on Wumpus there's been a gap where I haven't made any commits. I've now committed all the new code:

Copperbox revision 1749 - Wumpus-Basic
Added ScalingContext to Basic.Graphic for drawings such as Trees or Turtle drawings that work with some coordinate space (e.g. integer coordinates for turtle) that gets scaled to Drawing coordinates.

Copperbox revision 1750 - Wumpus-Tree
Added a new drawing style for "family trees" - here the connector is drawn as a horizontal line with vertical ticks to the parent and child nodes.

Copperbox revisions 1751 & 1752 - Wumpus-Microprint
Changed the capitalization of the module hierarchy to use a lower 'p' for Microprint, so the first commit deleted the old source modules, the second commit adds the old ones back plus a new module for tokenizing input. This new tokenizer is preferred over the previous teletype style.

Copperbox revision 1753 - Poor Small Chart
Changes to the Sparkline implementation. The new implementation is closer to the latest drawing style supported by Wumpus-Basic, but it is not strictly an improvement as the new types are too complicated. Chart drawing needs a substantial rethink.