Order Status & Watchlist improvements

The Order Status and Watchlist pages now update automatically (3 second clock). The System Messages box now indicates when an order is cancelled from the Order Status page and when a game is removed from the Watch List. Cancelled limit orders will now move from the Open Orders to Cancelled Orders table without manual refresh. When an order is filled, it will also move from the Open Orders to Filled orders table without manual refresh. Games removed from the Watch List will drop off the page without a manual refresh.