Delete BasicCommunicationAssertionModel.
Inject ArgmaxAssertionModel with factory.
Remove positive prior parameter from chooseExpression() in
CategoryAssertionModel.
Remove positive prior parameter from AgentImpl constructor.
Create value object PositivePrior.
Implement toString() in PositivePrior.
SimulationParameters uses new PositivePrior object.
Create ConjunctionPrior value object and use in SimulationParameters.
Make factory method for creating GuessingAssertionModel.
Inject ConjunctionPrior into ConjunctionGuessingAssertionModel.
Remove conjunction prior parameter from assertion() in
GuessingAssertionModel.
Remove conjunction prior parameter from AgentImpl constructor.
Refactor TestExperiment.