2N is unusual after a strong 2C open, but not after a weak-two.
Add missed-slam detection to autobid-for-none.
Clean up definitions of JumpShift bids by using multiple inheritance
Add test for pass by responder in 2 over 1 auction.
Priorities handler no longer needs to be optional.
Cuebid responses to overcalls should be made with support points.
Make /bid not blow up when there is an InconsistentHistoryException during interpetation
Add a test for a delayed overcall after 1N opening.  We don't handle this yet