Add options to breadcrumb helpers.

Enable to set options to breadcrumb helpers.

@example
```ruby
breadcrumb.set_home("/custom", "Custom Home Page", :id => "home-id")
breadcrumb.add :foo, "/foo", "Foo Link", :id => "foo-id", :class => "foo-class"

breadcrumbs(breadcrumb, nil, nil, :id => "breadcrumbs-id", :class => "breadcrumbs-class")
```