Ambiguity between 'defaultSortOrder' and 'defaultASC'

I was in need to make the first sort order as ascending when any column is sorted for the first time. So used `defaultSortOrder: 'asc'` option for table but it didnt work.

Then I used `defaultASC` prop with `TableHeaderColumn` element and it worked.

Now if `defaultASC` sets the first sort of a column then it is ambiguous with `defaultSortOrder`. And if `defaultSortOrder` sets the initial sort order of the column then it is ambiguous with `sortOrder` option.