Account system

To prepare for setting up a prediction market exchange, I first set up a simple account system. Checking out games and their stock information will not require logging in. However, to trade the stock and view your own account information, you will have to log in. I set up a page for the user to customize a Profile. I also added an Order Book to the stock pages that is only viewable after logging in.

Early functions of the trading system were also implemented. Users can submit orders that will appear in the Order Book. The trading system will match orders by price.