The original rules state that there should be no discussion during retreats and disbands. We should add this as a press mode.
I'm not sure what we should call this. "Original press"? "Tournament press"? "Hardcore press"?
I would go with "Tournament press".
Sounds quite "official", and an explanation what this means would be needed anyway.
The more I think about this, the more I think it should be called "rulebook press".
Fixes #99: Now there's a new press mode to match the Diplomacy rulebook.
Database updates for fix #99.