Bring stop, lock, exit, and run icons into XDG compliance

src/configuredialog.cpp

@@ -254,7 +254,7 @@ void ConfigureDialog::setIcons(){
 	tB_general->setItemIconSet( 0, SmallIcon( "scheme_powersave", TQIconSet::Automatic));
 	tB_general->setItemIconSet( 1, SmallIcon( "button", TQIconSet::Automatic));
 	tB_general->setItemIconSet( 2, SmallIcon( "scheme_power", TQIconSet::Automatic));
-	tB_general->setItemIconSet( 3, SmallIcon( "lock", TQIconSet::Automatic));
+	tB_general->setItemIconSet( 3, SmallIcon( "system-lock-screen", TQIconSet::Automatic));
 	tB_general->setItemIconSet( 4, SmallIcon( "misc", TQIconSet::Automatic));
 	pB_configNotify->setIconSet(SmallIconSet("knotify", TQIconSet::Automatic));