lib/rails_admin_nestable.rb
require 'rails_admin_nestable/engine'
module RailsAdminNestable
end
require 'rails_admin/config/actions'
require 'rails_admin/config/model'
require 'rails_admin_nestable/configuration'
require 'rails_admin_nestable/nestable'
require 'rails_admin_nestable/model'
require 'rails_admin_nestable/helper'