[PERF](CCC animate) Prevent the additional animation render in non-animatable charts
[REF](CCC RoleVarHelper) This helper is now being used to fill every non-trivial measure-like scene variables.
[FIX](CCC Chart Panel axes visualRoles) A lot of references to the chart's axes and visualRoles, instead of to the local panel fields.
[FIX](CCC HeatGridPanel colorRole) An error that occurred if the color role would be unbound.
[FIX](CCC BarPanel BarPlot barStackedMargin) The option was being read directly from the chat options, instead of from the BarPlot.
[PERF](CCC Animate) Added an _animatable property to charts to prevent performing animation of non-animated charts...
[FEAT](CCC BarPanel ValuesMask) Added support for valuesMask in the Bar family charts
[CHG](CCC visibleData) Moved this group of methods to the BaseChart class.
[IMP](CCC datum marks) Removed the mark properties: _datum_, _group_ and __scene_; these were no longer needed
[FIX](CCC datum marks) A bug that occurred when the context was built for the visible extension point, where the __scene_ property was not yet evaluated
[IMP](CCC null datums) No longer creating null datums for series/category combinations that are not present in the data.
[FIX](CCC lint) Some NetBeans contributions.