Added more core_ext to install.rb

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@358 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/install.rb

@@ -61,6 +61,7 @@
  action_controller/support/class_attribute_accessors.rb
  action_controller/support/clean_logger.rb
  action_controller/support/core_ext/hash_ext.rb
+ action_controller/support/core_ext.rb
  action_controller/support/inflector.rb
  action_controller/support/binding_of_caller.rb
  action_controller/support/breakpoint.rb