[#3040 state:committed]
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

  * 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

class_attribute gets instance methods which delegate to but may override their class values as you'd expect. Disable instance writer methods with :instance_writer => false.

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

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

Add support for mount RackApp, :at => "/sprockets" with a shorthand of mount Sprockets => "/sprockets". 

This is different from the match syntax in that it cannot be used for controller/action and it does not 
assume an anchor at the end of the match. 

For instance, in the above example, if the client asked for "/sprockets/foo.js", the Sprockets app would
have a SCRIPT_NAME of "/sprockets" and PATH_INFO of "/foo.js".

Move middlewares to the Application level. If you want to modify the middleware, either use Rails.application.config.middleware or modify it in an initializer (if you need to set it relative to user-specified middleware).

[#3911 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Update generated Gemfile to use http://rubygems.org, unicorn instead of mongrel, and nokogiri instead of hpricot

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