Use qAsConst

It's available now and much easier to read.

lib/Emulation.cpp

@@ -133,7 +133,7 @@ void Emulation::setScreen(int n)
   if (_currentScreen != old)
   {
      // tell all windows onto this emulation to switch to the newly active screen
-     for(ScreenWindow* window : const_cast<const QList<ScreenWindow*>&>(_windows))
+     for(ScreenWindow* window : qAsConst(_windows))
          window->setScreen(_currentScreen);
   }
 }