fixed project name typo
Deleted the strategy tests.
refactored import to reflect the moving of AbortRoundException to edu.nyu.cess.multi.common
Implemented function synchronizeGroups()

synchronizes groups via a cyclic barrier.
refactored import to reflect the moving of AbortRoundException to edu.nyu.cess.multi.common
Implement a CyclicBarrier to allow synchronization across server control threads.
Created an InvalidGameException class.