Changed BTCCHinaSocketIOClientBuilder to separate subscriptions on different sockets.
Merge pull request #800 from bryan4887/BTCChinaSocketOptFix

Changed BTCCHinaSocketIOClientBuilder to separate subscriptions
[bitcointoyou] Minor change on gitignore.
[bitcointoyou] Fixing a probable bug on nonce, changing from sec to millis. If the user makes more than 1 call / sec it was causing INVALID_NONCE error because the nonce always have to be bigger than the last one. With this change, the user can't make more than one call / millisecond.
Merge pull request #802 from felipelalli/bitcointoyou

BitcoinToYou minor bug fix
Replace MarketMetadataService with PollingAccountService.getMetadata
[anx] Migrate MarketMetadataService
[btce] Migrate MarketMetadataService
[kraken] Migrate MarketMetadataService
[hitbtc] Add getMetadata
 change HitbtcSymbol to use separate base and counter currency, add test,
 remove default currency pair in trade history parameters