Custom class for th/td

[np]

While there is a way to customize the style using dataStyle and headerStyle there is no way to customize the class.

I'm proposing to either add dataClass and headerClass, or something more general such as dataProps and headerProps.

[rudolph-miller]

I added headerProps and dataProps via bedf87d, and published new version 1.3.0.

Try this APIs and please close this issue if it satisfied you. :)

[np]

Thanks it works great!