Experimental module for filled gauges
Maps: Finished colorAxis logic with multiple stops.
Refactored the assignment of values to parallel arrays to make it easier to override with multidimensional series types.
Maps: Removed point.y option and instead use point.value.
Maps: Got heatmap demo up and running again. Fixed ColorAxis for inverted charts.
Fixed issue with flags on the last point dropping down to the X axis when the main series enters data grouping. Closes #2374.
Highstock: Fixed regression with data grouping getting stuck when zooming in. Closes #2110.
Added error message on trying to add an object literal point configuration on a series with more data points than the turboThreshold.
Maps: Minor fix on heatmap
Fixed bad positioning of rotated elements when useHTML was true. Closes #2404.
Fixed issue with non-sync data grouping on ordinal axis when X distribution differs. Closes #2416.
Added new option, global.timezoneOffset, to allow setting which timezone the data is displayed in even though the input data is defined as UTC.
Highstock: Fixed issue with the navigator not spanning the full width of the main data when the base series did not fill it. Closes #2436.
Fixed issue with updating the visibility of a pie slice causing it to go invisible. Closes #2430.
Utils: Added some experimental code to follow branches in the issue-by-commit tool
Utils: Added visual Git branch tree to the issue-by-commit tool.
Highstock: Fixed issue with range selector inputs not allowing to set date to the actual data extreme when the extreme had higher precision of the input format. Closes #2438.
Maps: Made colorAxis a global config object instead of a series option.
Maps: Made the color axis draw its own legend symbol to allow it to survive adding and removing series during drilldown.
Maps: Minor bug