Fixed issue in us-data-labels demo with new coordinate system for maps
Fixed #3536, implemented error message on wrong color definitions in heat maps.
Redid too specific fix for #3391.
Fixed #3544, drilling up failed when top series data was added dynamically.
Changed the Axis.tickPositioner callback so that the default tick positioning logic runs first, to allow modification in the tick positioner instead of creating positions from scratch. Closes #3538.
Highmaps: Fixed issue where removing point would not cause view to reset
Fixed #3390, single heatmap point getting huge size and causing rendering defects. Better axis metrics for single points. Closes #2515.
Highmaps: Fixed #3218, border gets wider on zooming in IE11.
Added new demo for export to PNG through canvg, without going through the export server
Modified the offline-download demo to lazy-load canvg upon request.
Export: Optimizing serverpool properties
Updated .gitignore
Worked on offline-export demo
Highstock: Fixed #3519, markers showing outside a clipped pane.
Removed comment in demo
Highstock: Fixed #3539, navigator outline one pixel off at the left side.
Fixed uninitialized seriesIndex in getColumnDistribution
In solid gauges, added support for initial animation as well as setting animation object for updates. Closes #3135.
Added new option, global.getTimezoneOffset, to allow integration with third party timezone libraries like moment-timezone.js.
Additions to the previous