Implemented first stage of orderbook creation, using refactored fns
REFACTORED: Order books refactored to use common functions
ADDED: Helpers for order book creation
REFACTORED: Counters and flags genericised by data type
ADDED: Data area under kawasu.orders to store raw order book data
ADDED: StyleSheets and links for OrderBooks
ADDED: Config options for OrderBooks
REFACTORED: OrderBook names now composed of elements
Merge pull request #44 from Hiblet/TradingPageOrders20_OrderBooks

Implemented first stage of orderbook creation, using refactored fns