Use require_self from latest Sprockets

actionpack/actionpack.gemspec

@@ -25,7 +25,7 @@
   s.add_dependency('rack',             '~> 1.2.1')
   s.add_dependency('rack-test',        '~> 0.5.7')
   s.add_dependency('rack-mount',       '~> 0.7.2')
-  s.add_dependency('sprockets',        '~> 2.0.0.beta.1')
+  s.add_dependency('sprockets',        '~> 2.0.0.beta.2')
   s.add_dependency('tzinfo',           '~> 0.3.23')
   s.add_dependency('erubis',           '~> 2.7.0')
 end

railties/lib/rails/generators/rails/app/templates/app/assets/stylesheets/application.css

 /*
  * FIXME: Introduce SCSS & Sprockets
+ *= require_self
  *= require_tree . 
 */
\ No newline at end of file