Move pagination into private method for overriding

[dwilkie]

Allows you to do this:

module Admin
  class ApplicationController < Administrate::ApplicationController

    private

    def paginate_resources(resources)
      super.without_count
    end
  end
end

[pablobm]

I'm generally in favour of moving those things to private methods. So I'm in! 👍 Thank you.