Added custom dataframes for tickers and ohlc methods Caching has been improved to take into account the optional parameters (so ohlc(1min) and ohlc(5min) are cached separately)
0.9.3
Minor changes to make OHLC and tickers more usable: * asset pairs can be provided to them by list or simple strings * OHLC merges multiple pairs into one single Dataframe * A new method has been added to convert internal Kraken pairs to human-friendly equivalents (e.g. XXBT -> Bitcoin)