function _fnSetCellData(settings, rowIdx, colIdx, val) {
		var col = settings.aoColumns[colIdx];
		var rowData = settings.aoData[rowIdx]._aData;

		col.fnSetData(rowData, val, {
			settings: settings,
			row: rowIdx,
			col: colIdx
		});
	}
Set the value for a specific cell, into the internal data cache
 @param {object} settings dataTables settings object
 @param {int} rowIdx aoData row id
 @param {int} colIdx Column index
 @param {*} val Value to set
 @memberof DataTable#oApi