moving include of ScriptaculousHelper into PrototypeHelper, ActionView should know as little as possible about individual frameworks

actionpack/lib/action_view/helpers.rb

@@ -20,7 +20,6 @@ module Helpers #:nodoc:
     autoload :RecordIdentificationHelper, 'action_view/helpers/record_identification_helper'
     autoload :RecordTagHelper, 'action_view/helpers/record_tag_helper'
     autoload :SanitizeHelper, 'action_view/helpers/sanitize_helper'
-    autoload :ScriptaculousHelper, 'action_view/helpers/scriptaculous_helper'
     autoload :TagHelper, 'action_view/helpers/tag_helper'
     autoload :TextHelper, 'action_view/helpers/text_helper'
     autoload :TranslationHelper, 'action_view/helpers/translation_helper'
@@ -53,7 +52,6 @@ module ClassMethods
     include RecordIdentificationHelper
     include RecordTagHelper
     include SanitizeHelper
-    include ScriptaculousHelper
     include TagHelper
     include TextHelper
     include TranslationHelper

actionpack/lib/action_view/helpers/prototype_helper.rb

@@ -1,6 +1,7 @@
 require 'set'
 require 'active_support/json'
 require 'active_support/core_ext/object/returning'
+require 'action_view/helpers/scriptaculous_helper'
 
 module ActionView
   module Helpers
@@ -73,6 +74,8 @@ module Helpers
     # See JavaScriptGenerator for information on updating multiple elements
     # on the page in an Ajax response.
     module PrototypeHelper
+      include ScriptaculousHelper
+
       unless const_defined? :CALLBACKS
         CALLBACKS    = Set.new([ :create, :uninitialized, :loading, :loaded,
                          :interactive, :complete, :failure, :success ] +