Blah, assets cant be turned on from initializers either

railties/lib/rails/generators/rails/app/templates/config/application.rb

@@ -62,5 +62,8 @@ class Application < Rails::Application
     # Enable IdentityMap for Active Record, to disable set to false or remove the line below.
     config.active_record.identity_map = true
 <% end -%>
+
+    # Enable the asset pipeline
+    config.assets.enable = true
   end
 end

railties/lib/rails/generators/rails/app/templates/config/initializers/new_rails_defaults.rb.tt

-<%= app_const %>.configure do
-  config.assets.enabled = true
-end
\ No newline at end of file