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/test/controller/rack_test.rb

@@ -219,7 +219,7 @@ class RackResponseTest < BaseRackTest
       "Content-Type" => "text/html; charset=utf-8",
       "Cache-Control" => "private, max-age=0, must-revalidate",
       "ETag" => '"65a8e27d8879283831b664bd8b7f0ad4"',
-      "Set-Cookie" => [],
+      "Set-Cookie" => "",
       "Content-Length" => "13"
     }, headers)
 
@@ -228,6 +228,21 @@ class RackResponseTest < BaseRackTest
     assert_equal ["Hello, World!"], parts
   end
 
+  def test_utf8_output
+    @response.body = [1090, 1077, 1089, 1090].pack("U*")
+    @response.prepare!
+
+    status, headers, body = @response.to_a
+    assert_equal 200, status
+    assert_equal({
+      "Content-Type" => "text/html; charset=utf-8",
+      "Cache-Control" => "private, max-age=0, must-revalidate",
+      "ETag" => '"ebb5e89e8a94e9dd22abf5d915d112b2"',
+      "Set-Cookie" => "",
+      "Content-Length" => "8"
+    }, headers)
+  end
+
   def test_streaming_block
     @response.body = Proc.new do |response, output|
       5.times { |n| output.write(n) }
@@ -238,9 +253,8 @@ class RackResponseTest < BaseRackTest
     assert_equal 200, status
     assert_equal({
       "Content-Type" => "text/html; charset=utf-8",
-      "Content-Length" => "",
       "Cache-Control" => "no-cache",
-      "Set-Cookie" => []
+      "Set-Cookie" => ""
     }, headers)
 
     parts = []