* Remove ActionEndpoint in favor of passing a block to MiddlewareStack
  * Always create a Request; the performance win of RackDelegation is around
    the response; the Request object hit is limited to a single object allocation
  * #dispatch takes a Request

	This is an interim solution pending revisiting the rails
	framework configuration situation. 

add lazy_load_hooks.rb, which allows us to declare code that
should be run at some later time. For instance, this allows
us to defer requiring ActiveRecord::Base at boot time purely
to apply configuration. Instead, we register a hook that should
apply configuration once ActiveRecord::Base is loaded.

With these changes, brings down total boot time of a
new app to 300ms in production and 400ms in dev.

TODO: rename base_hook

Get rid of relative_url_path in favor of respecting SCRIPT_NAME. Also added a way to specify a default SCRIPT_NAME when generating URLs out of the context of a request.

Deprecated ActionController::Base.session_options= and ActionController::Base.session_store= in favor of a config.session_store method (which takes params) and a config.cookie_secret variable, which is used in various secret scenarios. The old AC::Base options will continue to work with deprecation warnings.

Deprecate IP spoofing settings that are directly on the controller in favor of configuring a middleware

Indicate that ActionController::Base.resource_action_separator is deprecated and only has an effect with the deprecated router DSL.

	* Refactored ActionPatch to use fullpath instead

Change AV formats so they can delegate to the controller. Now users (or plugins) can override details_for_render in their controllers and add appropriate additional details. Now if only they could *do* something with those details...