rails/rails — pull request #6502 by rafmagana (2012-05-26 20:14:32+00:00)
Title: [Guides] refactor rakefile to have a :guides namespace and a task that shows help

Rake tasks:

* guides:generate (executes generate:html)
* guides:validate
* guides:generate:html
* guides:generate:kindle
* help (default) - the text is almost the same than in rails_guides/generator.rb