gregbell/active_admin — pull request #1415 by jpmckinney (2012-06-20 04:29:56+00:00)
Title: Use display_name helper in breadcrumb

Right now, the `BreadcrumbHelper` calls the object's `display_name` method if it is defined.

`DisplayHelper` has a `display_name` helper that uses the `display_name_methods` settings to find alternative methods to call on the object in order to find an appropriate name.

`BreadcrumbHelper` should call that helper method instead.