- Feature work remaining:
2.0
- clocks
annotations
chatting
2.x
analysis/highlight tools
bughouse/crazyhouse
+- Make the drawing/highlighting code just touch single squares, rather
+ than redrawing the whole board each time (fast though this is,
+ touching single squares is all that's necessary, and it would be
+ even faster)
+
- Fix highlighting in chess-plain when chess-plain-spacing is set.
chess-coord needs to be applied to a larger area, and also the way
highlight locations are found needs to be recalculated.