Change mintpal change field to a String to handle '>/<' characters.
Merge pull request #575 from jamespedwards42/develop

Change Mintpal change field to a String to handle '>/<' characters.
Merge pull request #574 from sutra/develop

Add date property to BTCChina market depth, ticker
[VoS] implement Account/Trading API + refactoring
[VoS] delete some residue DTOs
new trades demo, List to array refactor
Added orderbook and ticker demo
market data bug fixes
Added more parameters for GetAccountInfo. The parameter now could be "all", "balance",  "frozen" or "profile". (New feature introduced in API v1.8)
Unmarshal all fields in BTCChinaProfile, add support of requesting all supported currency deposit address not only BTC.