Chapter 13, test failure 1, SniperListener.sniperLost not invoked
Chapter 13, test failure 2, sniper is not bidding
Chapter 13, test failure 3, sniper is still not bidding, with new unit test
Chapter 13, completed scenario, single item - join, bid and lose
Chapter 13, XMPPAuction created
Chapter 13, extracted SniperStateDisplayer
Chapter 13, refactored AuctionMessageTranslator