george/prediction_tracker: Manage and score predictions on arbitrary topics. @ 295727fe6b8355c423a3ec22b4b53ca49139289c

George C. Privon 295727fe6b remove solved TODO comment		преди 6 години
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create_database.rkt	3b8fae716c don't force entry of prediction text every time, since prediction has unique ID	преди 6 години
scoring_rules.rkt	c7a036e748 math library not needed for expt/log	преди 6 години
update_predictions.rkt	295727fe6b remove solved TODO comment	преди 6 години