Version 1.0.x
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* Bug
 * bufferview: The 'deleteRow' method doesn't work properly. fixed.
 * detailview: The 'getChanges' method returns empty row when inserting a row on the empty datagrid. fixed.

* Improvement
 * groupview: The 'detailFormatter' function is available to add a detail row.
 * detailview: The 'id' property can be set in the 'options' of the 'subgrid' component.
