* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Fix boolean types bug
* Add subgroup stacking
* Almost finish subgroup stacking
* Play with examples for subgroup order
* Fix stacked subgroups
* Fix subgroup stacking
* Add stackSubgroups option
* Fix example
* Add docs
* Fix onRemove item subgroups recalculate
* Return subgroup example and add stackSubgroup example
* Split stackSubgroup example to subgroup/html and expectedVsActualTimesItems.html
* Added HTML tooltip support for Timeline
* Fixed tooltip position on Firefox
* Added Timeline tooltip example
* Updated tooltip location to be next to the mouse
* Added HTML element to example
* Fix redraw order
* Add initial itemVisibleFrame
* Add visibleFrameTemplate option
* Improve example
* Rename and fix example
* Fix comments from PR
* Fix example
* generate individual css files; fixes#1969
* simplified css bundleing
* add new generated dist-css files
* use chart specific css files in the examples