def submit(label, *args)
      options = args.extract_options!
      new_class = options[:class] || Bootstrap3FormBuilder.default_submit_style
      super(label, *(args << options.merge(:class => new_class)))
    end
def submit(label, *args)
      options = args.extract_options!
      new_class = options[:class] || Bootstrap3FormBuilder.default_submit_style
      super(label, *(args << options.merge(:class => new_class)))
    end
Replace form submit input with styled buttons