add cart;
change the way of handling cart while user perform 'buy';
add class: center (mostly used for table);
add clear cart;
add approvetransaction.jsp;
add detailtransaction.jsp;
add maketransaction.jsp;
add removetransaction.jsp;
add transactionhistory.jsp;
Merge branch 'master' of https://github.com/kokki100/projekwp