def render(renderer=nil)
      renderer ||= Ariane.default_renderer
      renderer = renderer.new if renderer.is_a?(Class)
      renderer.render(crumbs)
    end
def render(renderer=nil)
      renderer ||= Ariane.default_renderer
      renderer = renderer.new if renderer.is_a?(Class)
      renderer.render(crumbs)
    end
Public: Renders the breadcrumb.

 If no renderer is provided, Ariane's default_renderer will be used.

 renderer - An instance or a class that will be used to render the
            breadcrumb. If a class is given the renderer will be set
            to a new instance of this class (default: nil).

 Examples

   ariane.render
   ariane.render(SomeRendererClass)

 Returns a String representing the breadcrumb.