Adding KUndoGroup

[Albert Astals Cid]

Might i add KUndoGroup that inherits QUndoGroup and adds proper 
QAction *createRedoAction(KActionCollection* actionCollection, const QString& 
actionName)
and 
QAction *createUndoAction(KActionCollection* actionCollection, const QString& 
actionName)
like KUndoStack does? 

That is, set the KDE proper icon, icon text, shortcut and add it to the 
actioncollection.

Albert