Added volumeWeightedAveragePrice for the new itbit api version.
Merge pull request #538 from kpysniak/itbit

Added volumeWeightedAveragePrice for the new itbit api version.
Added orders/recent in hitbtc.
Merge pull request #539 from kpysniak/hitbtc

Added orders/recent in hitbtc.
Fix java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result in com.xeiam.xchange.btcchina.BTCChinaAdapters.adaptTransaction(BTCChinaTransaction).