george/prediction_tracker: Manage and score predictions on arbitrary topics. @ 965bf8b97b636299f38a47f195f988ccef612624

George C. Privon 0ecc6d5c72 schema bugfix: need a date for each prediction/outcome		пре 6 година
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brier_score.rkt	88e68619e7 Brier score and unit test	пре 6 година
create_database.rkt	0ecc6d5c72 schema bugfix: need a date for each prediction/outcome	пре 6 година