Bugfixes and Rails Edge

Update to Rails 2.3.1.
  (Actually, not quite. Doesn't look like 2.3.1 will be released
   today, but I REALLY want to push these bugfixes out.)
Removed bundled Rack (Rails 2.3.1 comes bundled with Rack 1.0).
Add
     config.action_view.cache_template_loading = true
  to production environment.
Fix FastCGI bug (http://rubyforge.org/tracker/index.php?func=detail&aid=24191&group_id=186&atid=783).
Fix WikiWords bug (http://rubyforge.org/pipermail/instiki-users/2009-February/001181.html).

vendor/rails/actionpack/lib/action_view/base.rb

@@ -182,6 +182,15 @@ module ActionView #:nodoc:
     # that alert()s the caught exception (and then re-raises it).
     cattr_accessor :debug_rjs
 
+    # Specify whether templates should be cached. Otherwise the file we be read everytime it is accessed.
+    # Automaticaly reloading templates are not thread safe and should only be used in development mode.
+    @@cache_template_loading = false
+    cattr_accessor :cache_template_loading
+
+    def self.cache_template_loading?
+      ActionController::Base.allow_concurrency || cache_template_loading
+    end
+
     attr_internal :request
 
     delegate :request_forgery_protection_token, :template, :params, :session, :cookies, :response, :headers,
@@ -222,6 +231,8 @@ module ActionView #:nodoc:
 
     def view_paths=(paths)
       @view_paths = self.class.process_view_paths(paths)
+      # we might be using ReloadableTemplates, so we need to let them know this a new request
+      @view_paths.load!
     end
 
     # Returns the result of a render that's dictated by the options hash. The primary options are:
@@ -243,8 +254,8 @@ module ActionView #:nodoc:
         if options[:layout]
           _render_with_layout(options, local_assigns, &block)
         elsif options[:file]
-          tempalte = self.view_paths.find_template(options[:file], template_format)
-          tempalte.render_template(self, options[:locals])
+          template = self.view_paths.find_template(options[:file], template_format)
+          template.render_template(self, options[:locals])
         elsif options[:partial]
           render_partial(options)
         elsif options[:inline]