How

• Subversion checkout into vendor/plugins/
  

  http://dev.rubyonrails.org/svn/rails/trunk/activeresource

• Requires a file from trunk
  

  http://dev.rubyonrails.org/svn/rails/trunk/activesupport/lib/active_support/core_ext/module/attr_accessor_with_default.rb

• cont'd