code: func NewRecovery() *Recovery {
  	return &Recovery{
  		Logger:     log.New(os.Stdout, "[negroni] ", 0),
  		PrintStack: true,
  		LogStack:   true,
  		StackAll:   false,
  		StackSize:  1024 * 8,
  		Formatter:  &TextPanicFormatter{},
  	}
  }
docs: // NewRecovery returns a new instance of Recovery