Implement BTCChina WebSocket API v1.2.2: Added 'grouporder' feed.
Merge pull request #705 from sutra/feature/BTCChina-WebSocket-API-v1.2.2

Implement BTCChina WebSocket API v1.2.2: Added 'grouporder' feed.
Implement Coinsetter RESTful/JSON API: Market Data.
Implement Coinsetter Websockets API.
Fix warning in javadoc.
Merge pull request #710 from sutra/feature/coinsetter

Implement Coinsetter RESTful/JSON API: Market Data and Websockets API.
[Poloniex] Handle new trade response
Merge pull request #712 from zholmes1/develop

[Poloniex] Handle new trade response
Merge branch 'ww3456' into HEAD