Merge pull request #518 from jamespedwards42/develop

MintPal Market Data Implementation With Demos And Tests.
Implement limit parameter for trade history.
Merge pull request #520 from sutra/develop

Implement limit parameter for trade history.
Fix BTCChina signature method for string and boolean parameters.
More test cases for stripParams.
Merge pull request #521 from sutra/develop

Fix BTCChina signature method for string and boolean parameters.
Implement BTCChina getDeposits API method.
Uncomment the requestBTCChinaBitcoinDepositAddress demo which is miscommitted.
Added anx available balance query.
Merge pull request #522 from sutra/develop

Implement BTCChina getDeposits API method.
Merge pull request #524 from kpysniak/anx

Added anx available balance query.
Implement parameters support for BTCChina getTransactions.
Merge pull request #526 from sutra/develop

Implement parameters support for BTCChina getTransactions.
Delete BTCChinaDepositObject#setDeposits.
Delete BTCChinaGetDepositsRequest#BTCChinaGetDepositsRequest(String).
Implement BTCChina getWithdrawals API method.
Implement BTCChina getWithdrawal API method.
Add support to withdraw LTC for BTCChina.
Merge pull request #527 from sutra/develop

Implement BTCChina getWithdrawals/getWithdrawal API method, add support to withdraw LTC.
Add market order support, add LTCCNY, LTCBTC markets support, for BTCChina.