qgis/QGIS — pull request #1515 by m-kuhn (2014-07-24 14:58:23+00:00)
Title: Handle undo for deleting virtual field

Changes public API

-QgsVectorLayerUndoCommandDeleteAttribute::QgsVectorLayerUndoCommandDeleteAttribute( QgsVectorLayerEditBuffer* buffer, int fieldIndex )
+QgsVectorLayerUndoCommandDeleteAttribute::QgsVectorLayerUndoCommandDeleteAttribute( QgsVectorLayerEditBuffer* buffer, QgsExpressionFieldBuffer* expBuf, int fieldIndex )