Add exceptions AuctionAllreadyClosed and WrongProductCount.
BuyItServeServlet refactoring and update AuctionServiceImpl.
Rename information_page.jsp to buy_it_information.jsp.
Create bid_information.jsp, BidBuilder, BidAmountFilter, BidFilter,
BuyItFilter, ClosedAuctionFilter, QueryFailFilter, WrongCountFilter, 
BidServeServlet.
Create exceptions