Merge pull request #20 from william-alexander/master

Add basic game logic
Done with j unit tests, before I add a newRound method. Will  have to add test for this method
Merge remote-tracking branch 'upstream/master'
Finished j unit test. Will have to add test for newRound method of gamePlay
Added error check for null fields in login
Removed a test print
Merge pull request #21 from bschoen610/master

J Unit testing done
Merge pull request #22 from SiddharthManoj/master

Added error check for null fields during login
Adding property change events and listChangeEvents and added serialization to each class
Merge pull request #23 from bschoen610/master

Adding property change events and listChangeEvents and added serializati...