Merge from vendor branch TNF:

Merge from vendor branch TNF:
Importing www/ruby-actionpack3 3.0.0.

Action Pack is a framework for handling and responding to web requests. It
provides mechanisms for *routing* (mapping request URLs to actions), defining
*controllers* that implement actions, and generating responses by rendering
*views*, which are templates of various formats. In short, Action Pack
provides the view and controller layers in the MVC paradigm.

(This is part of Ruby on Rails 3.)