this class is not used anymore!
old dataset class is not used anymore
including new js core in charts, too
documented column API
fixed dataset.filterSeries
re-build
explicitly naming files to be removed on make
using column.range() instead of _min() _max()
migrated chart.dataset()
date column types return format
added comments. type(true) returns type as object
storing precision of date input format
fixed rowName
refactored line chart to 2.0
refactored getYTicks and longDateFormat
refactored dw.chart to core 2.0
build