use sdoc to generate the API

Gemfile

@@ -21,7 +21,7 @@ gem "mocha", ">= 0.9.8"
 
 group :doc do
   gem "rdoc",  "~> 3.4"
-  gem "horo",  "= 1.0.3"
+  gem "sdoc",  "~> 0.3"
   gem "RedCloth", "~> 4.2" if RUBY_VERSION < "1.9.3"
   gem "w3c_validators"
 end

Rakefile

@@ -1,6 +1,7 @@
 #!/usr/bin/env rake
 
 require 'rdoc/task'
+require 'sdoc'
 require 'net/http'
 
 $:.unshift File.expand_path('..', __FILE__)
@@ -89,7 +90,8 @@ RDoc::Task.new do |rdoc|
   rdoc.rdoc_dir = 'doc/rdoc'
   rdoc.title    = "Ruby on Rails Documentation"
 
-  rdoc.options << '-f' << 'horo'
+  rdoc.options << '-f' << 'sdoc'
+  rdoc.options << '-T' << 'rails'
   rdoc.options << '-c' << 'utf-8'
   rdoc.options << '-m' << RDOC_MAIN