Refactored stage displays into their corresponding functions.
Moved to MultiCommon
Updated the import statements to reflect the StrategyType move to the package edu.nyu.multi.common.games.pd
Classes refactored out of the StrategyMatrixGUI class.
Replaced function calls for strategies to the StrategyFactory class.
Renamed StrategyMatrixPanel
Renamed MatchChoiceHistoryPanel
Created the NoStrategyGameRunnable class.