Merge pull request #585 from sutra/develop

Fix currency pair adapting for BTCChina.
Added base response to hitbtc containing code and error message. The code is back-compatible.
Fixed bitstamp user transaction query.
Merge pull request #588 from kpysniak/bitstamp

Fixed bitstamp user transaction query.
Merge pull request #589 from kpysniak/hitbtcresponse

Added base response to hitbtc containing code and error message. The cod...
Fixed anx order query.
[Hitbtc] Adding placeLimitOrder() method returning HitbtcExecutionReportResponse for better error handling
Merge pull request #592 from PiotrLadyzynski/develop

[Hitbtc] Adding placeLimitOrder() method returning HitbtcExecutionReport...
Merge pull request #591 from kpysniak/anx

Fixed anx order query.
Fix ordering of LimitOrders in OrderBook for Bitfinex, Btc-E, Cex.io and Vircurex
Merge pull request #593 from rafalkrupinski/fix-ordering

Fix ordering of LimitOrders in OrderBook for Bitfinex, Btc-E, Cex.io and...
Fix ordering of Orderbook for BTCCentral, BTCChina, CEX.IOand VirtEx
[VirCurEx] Fix a bug in getFullDepth()
[ANX] Fixed ANXV2 to be fully compliant with anx docs. Currently, {currency_pair} is not passed correctly.
Merge pull request #595 from kpysniak/anx

[ANX] Fixed ANXV2 to be fully compliant with anx docs. Currently, {curre...
[Hitbtc] Added hitbtc cancel request with fully user specified parameters.
[hitbtc] Removed old comment.
Merge pull request #596 from kpysniak/hitbtcancel

[Hitbtc] Added hitbtc cancel request with fully user specified parameter...
Move BTCChinaDepth to OrderBook adapting to BTCChinaAdapters, and add a test case to ensure the asks/bids orders are sorted correctly.