wumpus

Copperbox revision 2201.

I've started work updating Wumpus-Basic to compile with the unit changes to Core and Basic. Not having a nice infix bind operator is beginning to look like a problem - I don't have a bind as I'm moving between different types which are roughly the same reader/writer monad. One improvement might be to do away with the LocQuery and LocThetaQuery objects if I can.