Version 2.1.0

• Added support for accessing event information in with D3 6.x. Thanks to @danielePala (#59).

Version 2.0.0

• Added support for D3 6.x. Thanks to @ngg (#57)
• The index parameter of callbacks are undefined when using D3 6.x or above. See the index.htm file in the example folder to see how to get the proper index value in that case.
• Added class property for menu items that allows specifying CSS classes. Thanks to @jadurda (#56).