[KPhotoAlbum] Token setting in thumbnail view

[Johannes Zarl]

> > My feeling is that uppercase letters should always affect the whole stack.
> > How about you?
> Yes.  I thought that that was what I was doing, but I'm not familiar
> with the innards of the stacking.

I don't have time for testing right now, but my guess is that using 
"IncludeAllStacks" as SelectionMode parameter to ThumbnailWidget::selection() 
is probably sufficient. If that doesn't work, you'd have to get the stack 
information from the database...

  Johannes