Rack::Timeout v0.0.4 を Rails 4 で使うと middleware stack に積まれない

master の HEAD ではなおっているのでそっちを使いましょう...

gem "rack-timeout", github: "kch/rack-timeout"

require File.join(File.expand_path(File.dirname(__FILE__)), 'rack/timeout')

if defined? Rails
  case Rails::VERSION::MAJOR
  when 2; Rails.configuration.middleware.insert 0, Rack::Timeout
  when 3
    class Rack::Timeout::Railtie < Rails::Railtie
      initializer("rack-timeout.insert-rack-timeout") { |app| app.config.middleware.insert 0, Rack::Timeout }
    end
  end
end

# encoding: utf-8
require 'rack/timeout'
require 'rack/timeout/logger'

if defined?(Rails) && [3,4].include?(Rails::VERSION::MAJOR)
  class Rack::Timeout::Railtie < Rails::Railtie
    initializer('rack-timeout.prepend') { |app| app.config.middleware.insert 0, Rack::Timeout }
  end
end

Rack::Timeout::StateChangeLogger.register!