fixed Exception caused when only 1 CurrencyPair is provided
Merge pull request #625 from nimrood/develop

fix for issue#623 - Exception caused when only 1 CurrencyPair is provided
Implement BTCChina Trade API v2.0.1: Added two more parameters for getTransactions API method: "since" and "sincetype".
Implement BTCChina Data API v1.3.1: Added two more return values "vwap" and "prev_close" for ticker API.
Merge pull request #626 from sutra/develop

Implement BTCChina Trade API v2.0.1: Added two more parameters for getTransactions API method: "since" and "sincetype".
Merge pull request #627 from sutra/Data_API_v1.3.1

Implement BTCChina Data API v1.3.1: Added two more return values "vwap" and "prev_close" for ticker API.
MintPal limit orderbook depth enhancement
Added active position querying to Bitfinex raw service
Merge pull request #629 from jheusser/bfinex_activepos

Bitfinex: active positions query
woops! forgot to update MintPal examples
Merge pull request #628 from nimrood/develop

MintPal limit orderbook depth enhancement
[Bitcurex] Implement new public API
[BITTREX] User trade history

-Full user trade implementation

-Optional parameter to specificy order book/public trades length

-Prepended "Bittrex returned an error: " when throwing
ExchangeExceptions
Fixed demo
Merge pull request #636 from zholmes1/develop

[BITTREX] User trade history
Updated with current symbol pairs

Added missing symbol pairs, removed old GHS NMC pair. (gives an error now)
Merge pull request #637 from Achterhoeker/patch-12

Updated cexIO with current symbol pairs
added timestamp to Bitfinex orderbook
added timestamp to Kraken orderbook
added timestamp to VoS orderbook