added QuestionInfluence exception
added restore() to replace a revealed inf
added Player().improbable_actions
added improbable_actions to new simulation

simulation currently chooses one player and checks if the action is
improbable.  if so, 25% of the time, doubts it.
doubting logic in simulation improved
removed suspicion on QuestionInfluence

performers or doubters are no longer suspected of being influencing a
card when it is revealed.

this removes even when double-carded, but this is exactly how it is in
real life--this is unknown information to other players
merged in origin/master

anova now calculates addition simulation with doubting.