when x is set in serie values, the candles are rendered missaligned horizontally.
This can easly be fixed in dojox/charting/plot2d/CandleSticks
See bug report https://bugs.dojotoolkit.org/ticket/18180
patched file:
https://github.com/Tarrask/dojox/blob/master/charting/plot2d/Candlesticks.js