Kraken full orderBook and partial orderbook works now
copied from mtgox
Merge remote-tracking branch 'Raphael/kraken-DTOs' into kraken-polling-marketdata

Conflicts:
	xchange-kraken/src/main/java/org/xchange/kraken/Kraken.java
Ticker finished
Code style
Merge remote-tracking branch 'Raphael/kraken-DTOs' into kraken-polling-marketdata
Merge branch 'kraken-polling-marketdata' into kraken-authenticated
Merging
KrakenAuthenticate not working. Problem is probably . Test it with Kraken AccountDemo
Nonce is set to constant for testing.