message: Remove `WindowStack` "fixme" comment
  I see this method as being usful in it's own right, and separate from
  `updateStack`, so no need to combine them. Besides, it is used outside
  the context of `updateStack`, so it can't really be merged without
  updating other code.
diff: @@ -34,11 +34,6 @@ void WindowStack::removeWindow(Window* window)
  }
  -/**
  - * \fixme Can this and updateStack() just be rolled together? I don't see a use case where
  - * this would be used unless we're pressing a mouse button except maybe for highlights
  - * during mouse moves?
  - */
  bool WindowStack::pointInWindow(const NAS2D::Point<int>& point) const
  {
  for (auto* window : mWindowList)
  