def load_settings(global_opts)
      settings = Settings.new
      settings.load(ConfigFile.new(global_opts[:config_file]), global_opts)
      settings
    end
def load_settings(global_opts)
      settings = Settings.new
      settings.load(ConfigFile.new(global_opts[:config_file]), global_opts)
      settings
    end
Load settings, combining arguments from cmd lien and the settings file.
 @param global_opts [Hash] Application arguments
 @return [Settings] Object representing the settings for this run of the
                    app.