Issue #3: Add a new Game class to organize information about a single game.
          Instances of Game will be created during the arbitrator 'parse'
          method.
Issue #3: Add game.js to index.html's javascript includes.
Issue #3: Make game.js support multiple field loading, in order to have a
          consistent data model. Also fix a couple of issues with the parsing
          from the UI.
Issue #3: Add accessor methods to game.js and make games a hash map inside of
          Arbitrator object.
Issue #3: Make Game object have a date parsing mechanism, previously specified
          in Arbitrator object, for better encapsulation of data structures.
Issue #3: Fix tests associated with dates and roles due to the new changes from
          encapsulation within Game object.