10/29/2014 - modified class to incorporate spring jpa with javaConfig. Removed manual entitiyManagerFactory injection for entitymanager persistenceContext DI
10/29/2014 - At this state code runs and is able to retrieve data from nfl.com, but does not handle 404 not found errors gracefully. Currently throws javax.ws.rs.NotFoundException
Modified GameData, added game_identifier - this is a 10 character value in the format ^(yyyyMMdd\d{2})$ that uniquely identifies a match (game) between two nfl teams
latest update, not yet know if this handles 404 errors gracefully