code: function getSortValueFromCellData(cellData, column, rowData) {
    var sortValue = column.sortValue;
  
  
    if (sortValue) {
      return sortValue(cellData, rowData);
    }
  
    return cellData;
  }
docs: Gets the sort value of a cell given the cell data and row data. If
  no sortValue function is provided on the column, the cellData is
  returned.
  
  @param {Object} cellData The cell data
  @param {Object} column The column definition
  @param {Object} rowData The data for the row
  @return {Any} The sort value for this cell
   
  A collection of utility functions that make it easier to work with
  table data.
  @module Utils