Remove default classes on table component

[anthony-dandrea]

Maybe there's a reason I don't know of for them to be there. But it seems like bloat and if there are classnames added to just be added. I have already run into a conflict with a foundation style:

class*="column"]+[class*="column"]:last-child {
    float: right;
}

It unintentionally targets .mui-table-row-column and .mui-table-header-column.

[alitaheri]

@anthony-dandrea Yeah we've been meaning to do that. but that's a breaking change.

@oliviertassinari @shaurya947 Should we push this breaking change to 0.14.0? this can annoy a lot of people.

[anthony-dandrea]

I see. In hindsight I could see how these classes would make it easier for people to write styles. Maybe if there was a prop to turn off the default class. Or if className="" set the className to an empty string.

[alitaheri]

actually we plan to ONLY support className which defaults to ''
So, yeah we'd like to do that. but it's a breaking change. it must be planned