changed TBODY content callbacks $data param architecture.

before:
$data = array(
  'dataRow' => row related model,
  'dataIdx' => row's index,
  'columnName' => ...,
  'columnConfig' => ...
)

now:
$data = RowRelatedModelData (merged with) array(
  '_TableRow' => array(
    'rowIdx' => row's index,
    'columnName' => ...,
    'columnConfig' => ...
  )
)

this way you can access your data easily!