* Reduce the time-complexity of the network initial positioning. Very substantial performance gain for large graphs.
* Remove unwanted console messages, extended comment.
* Add methods to remove and add items to a subgroup.
Add method to change the subgroup an item is in.
No longer decrement subgroup ID when removing a subgroup.
Fixes#2594
* Moved the orderSubgroups call outside of the add/remove methods.
Added the ability to call the add/remove methods without a subgroupId parameter (takes from item data instead).
Don't update the showNested property if nothing has been set in the data object, unless it is undefined.
Verify group object exists during `onGroupClick`
* styling support for graph3d tooltips
* styling support for graph3d tooltips
* graph3d styling example, deleted new example and altered the original
* graph3d tooltip styling, documentation
* graph3d tooltip styling, use the util module's method for merging objects
* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Add animation options for zoomIn and zoomOut
* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Remove assign from examples
* Use jQuery
* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Fix events returned from mouse events
* Fix example
* Rename censor to stringifyObject in example
* Added support to supply an X2 to bar charts to have them scale
* Fixed graph2d stacking issue. It no longer takes into account hidden items
* Changed x2 to end per recommendation and added this to the docs
* Improve the performance of the network layout engine
Short-cut the execution of a number of methods in LayoutEngine to make them
handle highly-connected graphs better.
* Demonstrations of layouts of large networks
* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Fix bug in item editable
* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Make items z-index default to 1
* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Add animation to onUpdateTooltip