* Added formatted_polymorphic_url, formatted_polymorphic_path

* Added support for route options. Example:

    polymorphic_url(:id => @subject, :anchor => "photo")

* Added polymorphic routes for new and edit actions (new_polymorphic_url, edit_polymorphic_url)

* Moved polymorphic routes from SimplyHelpful::RecordIdentifier to SimplyHelpful::PolymorphicRoutes