message: Minor tweak to UiContainer to ensure that all added controls have their visibility property set.
diff: @@ -46,11 +46,11 @@ Control* UIContainer::addControl(const std::string& name, Control* c, float x, f
  }
  mControlList[toLowercase(name)] = c;
  - c->position(rect().x() + x, rect().y() + y);
  -
  -
  mDrawOrder.push_back(c);
  + c->position(rect().x() + x, rect().y() + y);
  + c->visible(visible());
  +
  /// todo\ Add validation to contain controls within a UIContainer.
  return c;
  