Column elements (th, tr) are rendered via Nette\Utls\Html. Thay are available through Column::getElementPrototype("tr" / "th")

Translate header in Csv export

OnColumnAddCallback

- add $onColumnAdd callback called when you add column of any type to datagrid

Action: Preserve chainability when setting data attribute

ColumnLink/Aciton now tries to create link to datagrid parent and that to datagrid parent presenter.

DataGrid is no by-default "striped", table class can be chaged in {block #table-class} when extending parent template

Column\Action fix - also NULL can be passed to ::setIcon(), ::setTitle(), ::setConfirm() and ::setClass()

fix annotation typo