add feed module(ntu_ga announcement rss feed module)

vendor/built_in_modules/feed/script/rails

@@ -0,0 +1,6 @@
+#!/usr/bin/env ruby
+#!/usr/bin/env ruby
+# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
+
+ENGINE_PATH = File.expand_path('../..',  __FILE__)
+load File.expand_path('../../test/dummy/script/rails',  __FILE__)