1.  RepositoryBase - Added sorting capability in GetPaginatedList method
such that results paged result set could be sorted by a supplied field and
direction.
2.  BetRepository - Modified code to use changes to RepositoryBase.
3.  IPagingTypeMapper - Commented methods.
1.  Moved GameSnaphot from Entities folder of Domain project to new
"Snapshots" folder.
2.  GameService - added using statement to reference new
Lincoln.FootballPool.Domain.Snapshots namespace.
3.  IBetPlacementService - added file.
4.  IGameService - added using statement to reference new
Lincoln.FootballPool.Domain.Snapshots namespace.
5.  BetSnapshot - added file.
6.  IBetRepository - made some change...not sure what.
7.  GamePersistenceService - added using statement to reference new
Lincoln.FootballPool.Domain.Snapshots namespace.  Removed comments.
8.  IGamePersistenceService - added using statement to reference new
Lincoln.FootballPool.Domain.Snapshots namespace.
9.  BetBaseRequestModel - Added contents to file.
10.  GameBaseRequestModel - Modified comment in file.
1.  GamePersistenceService - refactored GamePersistenceService such that logic which determines existence
of teams associated with games in the persistence store is shared between
the SaveGame and UpdateGame methods.
2.  GameSnapshot - added GameId property.
3.  IGamePersistenceService - added comments to interface.  Added GameTeamType
enum which is used in GamePersistenceService.