rem: : KFolderTreeItem( parent, name ), mFolder( folder ) { init(); }
add: : KFolderTreeItem( parent, folder->protocol(), name ), mFolder( folder ) {}
context: KMFolderTreeItem::KMFolderTreeItem( KFolderTreeItem *parent, QString name,                    KMFolder* folder )    : KFolderTreeItem( parent, name ), mFolder( folder ){  init();}