message: Use generic Configuration methods to read options
diff: @@ -117,7 +117,8 @@ int main(int /*argc*/, char *argv[])
  renderer.addCursor(constants::MOUSE_POINTER_INSPECT, PointerType::POINTER_INSPECT, 8, 8);
  renderer.setCursor(PointerType::POINTER_NORMAL);
  - if (cf.option("maximized") == "true")
  + const auto& options = cf["options"];
  + if (options.get<bool>("maximized"))
  {
  /** \fixme Evil hack exposing an internal NAS2D variable. */
  extern SDL_Window* underlyingWindow;
  @@ -130,7 +131,7 @@ int main(int /*argc*/, char *argv[])
  StateManager stateManager;
  stateManager.forceStopAudio(false);
  - if (cf.option("skip-splash") == "false")
  + if (!options.get<bool>("skip-splash"))
  {
  stateManager.setState(new SplashState());
  }
  