fix Xcode project reference to book.dat to use the SDK 5.1 path
fix Xcode project reference to book.dat to use the SDK 5.1 path

puremourning/littlego,herzbube/littlego,puremourning/littlego,herzbube/littlego,herzbube/littlego,puremourning/littlego,gcao/littlego_old,herzbube/littlego,herzbube/littlego,gcao/littlego_old,puremourning/littlego