Upgraded to Rails 2.3.4 (#3597)

* Ran the Rails upgrade
* Upgraded to Rails Engines 2.3.2
* Added a plugin to let Engines override application views.
* Converted tests to use the new classes:
** ActionController::TestCase for functional
** ActiveSupport::TestCase for units
* Converted ActiveRecord::Error message to a string.
* ActiveRecord grouping returns an ordered hash which doesn't have #sort!
* Updated the I18n storage_units format.
* Added some default initializers from a fresh rails app
* Changed the order of check_box_tags and hidden_field_tags.  The hidden tag
  needs to appear first in Rails 2.3, otherwise it will override any value in
  the check_box_tag.
* Removed the custom handler for when the cookie store is tampered with.
  Rails 2.3 removed the TamperedWithCookie exception and instead Rails will not
  load the data from it when it's been tampered with (e.g. no user login).
* Fixed mail layouts, 2.3 has problems with implicit multipart emails that
  use layouts.  Also removed some custom Redmine mailer code.
* Fixed a bug that occurred in tests where the "required" span tag would be
  added to the :field_status translation.  This resulted in an email string of:

    <li>Status<span class="required"> *</span><span class="required"> *</span>

  Instead of:

    <li>Status: New</li>

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2887 e93f8b46-1217-0410-a6f0-8f06a7374b81

vendor/plugins/engines/test/app/controllers/app_and_plugin_controller.rb

@@ -0,0 +1,5 @@
+class AppAndPluginController < ApplicationController
+  def an_action
+    render_class_and_action 'from app'
+  end
+end

vendor/plugins/engines/test/app/controllers/namespace/app_and_plugin_controller.rb

@@ -0,0 +1,5 @@
+class Namespace::AppAndPluginController < ApplicationController
+  def an_action
+    render_class_and_action 'from app'
+  end
+end

vendor/plugins/engines/test/app/helpers/mail_helper.rb

@@ -0,0 +1,5 @@
+module MailHelper
+  def do_something_helpful(var)
+    var.to_s.reverse
+  end
+end

vendor/plugins/engines/test/app/models/app_and_plugin_model.rb

@@ -0,0 +1,3 @@
+class AppAndPluginModel < ActiveRecord::Base
+  def self.report_location; TestHelper::report_location(__FILE__); end
+end

vendor/plugins/engines/test/app/models/notify_mail.rb

@@ -0,0 +1,26 @@
+class NotifyMail < ActionMailer::Base
+
+  helper :mail
+  
+  def signup(txt)
+    body(:name => txt)
+  end
+  
+  def multipart
+    recipients 'some_address@email.com'
+    subject    'multi part email'
+    from       "another_user@email.com"
+    content_type 'multipart/alternative'
+    
+    part :content_type => "text/html", :body => render_message("multipart_html", {})
+    part "text/plain" do |p|
+      p.body = render_message("multipart_plain", {})
+    end
+  end
+  
+  def implicit_multipart
+    recipients 'some_address@email.com'
+    subject    'multi part email'
+    from       "another_user@email.com"
+  end
+end

vendor/plugins/engines/test/app/things/thing.rb

@@ -0,0 +1,3 @@
+class Thing
+  def self.from_app; TestHelper::report_location(__FILE__); end
+end

vendor/plugins/engines/test/app/views/app_and_plugin/a_view.html.erb

@@ -0,0 +1 @@
+<%= TestHelper.view_path_for __FILE__ %> (from app)

vendor/plugins/engines/test/app/views/namespace/app_and_plugin/a_view.html.erb

@@ -0,0 +1 @@
+<%= TestHelper.view_path_for __FILE__ %> (from app)

vendor/plugins/engines/test/app/views/notify_mail/implicit_multipart.text.html.erb

@@ -0,0 +1 @@
+the implicit html part of the email <%= do_something_helpful("semaj") %>

vendor/plugins/engines/test/app/views/notify_mail/implicit_multipart.text.plain.erb

@@ -0,0 +1 @@
+the implicit plaintext part of the email

vendor/plugins/engines/test/app/views/notify_mail/multipart_html.html.erb

@@ -0,0 +1 @@
+the html part of the email <%= do_something_helpful("semaj") %>

vendor/plugins/engines/test/app/views/notify_mail/multipart_plain.html.erb

@@ -0,0 +1 @@
+the plaintext part of the email

vendor/plugins/engines/test/app/views/notify_mail/signup.text.plain.erb

@@ -0,0 +1,5 @@
+Signup template from application
+
+Here's a local variable set in the Mail object: <%= @name %>.
+
+And here's a method called in a mail helper: <%= do_something_helpful(@name) %>

vendor/plugins/engines/test/app/views/plugin_mail/mail_from_plugin_with_application_template.text.plain.erb

@@ -0,0 +1 @@
+<%= @note %> (from application)

vendor/plugins/engines/test/app/views/plugin_mail/multipart_from_plugin_with_application_template_plain.html.erb

@@ -0,0 +1 @@
+plugin mail template loaded from application