update rails on rack guide, section 2 needs to be changed or maybe deleted

railties/guides/source/rails_on_rack.textile

@@ -89,23 +89,32 @@ $ rake middleware
 For a freshly generated Rails application, this might produce something like:
 
 <ruby>
+use ActionDispatch::Static
 use Rack::Lock
-use ActionController::Failsafe
-use ActionController::Session::CookieStore, , {:secret=>"<secret>", :session_key=>"_<app>_session"}
-use Rails::Rack::Metal
-use ActionDispatch::RewindableInput
-use ActionController::ParamsParser
-use Rack::MethodOverride
-use Rack::Head
+use ActiveSupport::Cache::Strategy::LocalCache
+use Rack::Runtime
+use Rails::Rack::Logger
+use ActionDispatch::ShowExceptions
+use ActionDispatch::RemoteIp
+use Rack::Sendfile
+use ActionDispatch::Callbacks
+use ActiveRecord::ConnectionAdapters::ConnectionManagement
 use ActiveRecord::QueryCache
-run ActionController::Dispatcher.new
+use ActionDispatch::Cookies
+use ActionDispatch::Session::CookieStore
+use ActionDispatch::Flash
+use ActionDispatch::ParamsParser
+use Rack::MethodOverride
+use ActionDispatch::Head
+use ActionDispatch::BestStandardsSupport
+run Blog::Application.routes
 </ruby>
 
 Purpose of each of this middlewares is explained in the "Internal Middlewares":#internal-middleware-stack section.
 
 h4. Configuring Middleware Stack
 
-Rails provides a simple configuration interface +config.middleware+ for adding, removing and modifying the middlewares in the middleware stack via +environment.rb+ or the environment specific configuration file <tt>environments/&lt;environment&gt;.rb</tt>.
+Rails provides a simple configuration interface +config.middleware+ for adding, removing and modifying the middlewares in the middleware stack via +application.rb+ or the environment specific configuration file <tt>environments/&lt;environment&gt;.rb</tt>.
 
 h5. Adding a Middleware
 
@@ -118,7 +127,7 @@ You can add a new middleware to the middleware stack using any of the following
 * <tt>config.middleware.insert_after(existing_middleware, new_middleware, args)</tt> - Adds the new middleware after the specified existing middleware in the middleware stack.
 
 <ruby>
-# config/environment.rb
+# config/application.rb
 
 # Push Rack::BounceFavicon at the bottom
 config.middleware.use Rack::BounceFavicon
@@ -133,7 +142,7 @@ h5. Swapping a Middleware
 You can swap an existing middleware in the middleware stack using +config.middleware.swap+.
 
 <ruby>
-# config/environment.rb
+# config/application.rb
 
 # Replace ActionController::Failsafe with Lifo::Failsafe
 config.middleware.swap ActionController::Failsafe, Lifo::Failsafe
@@ -198,7 +207,7 @@ The following shows how to replace use +Rack::Builder+ instead of the Rails supp
 <strong>Clear the existing Rails middleware stack</strong>
 
 <ruby>
-# environment.rb
+# config/application.rb
 config.middleware.clear
 </ruby>