Changed constructor parameters
added method getCards()
added method drawCard()
changed parameters of method drawCard
added method shuffle()
changed card type
changed classname to Box
changed class name Box to Hand ...again
removed private variable value and its get and set method
removed private variable value ...again
removed Card.value related tests
added method getSize()
implemented Iterable
added class CardStackTest to package junit currently only tests if
CardStack is iterable
removed setter methods.
added method addCardStack()
nothing changed...
changed methodname to addCardStack
added method getCard().
added tests