Fix: Use class names from DataTables - 18761
Fix: Use jQuery's ability to deep copy data and events - 18761
New: Add support for DataTables hidden columns

- Columns which are hidden are no longer fixed into place

- This adds support for ColVis to FixedColumns

- Thanks to `dbr` for the invesigation and initial work into this
  feature - http://datatables.net/forums/discussion/18761
New example: ColVis integration example.