fast Rails 3+ templating system with JSON and XML support

 RABL (Ruby API Builder Language) is a Ruby templating system for rendering
 resources in different format (JSON, XML, BSON...).
 .
 rabl-rails is faster and uses less memory than the standard rabl gem (provided
 in the ruby-rabl package) while letting you access the same features.
 .
 rabl-rails only targets Rails 3+ application.