<NME> controller.rb
<BEF> # encoding: utf-8

require "rango"
require "rango/controller"
require "rango/environments"
require "rango/rack/middlewares/basic"

<MSG> Added Rango::StackController which is more complete than just basic Rango::Controller

<DFF> @@ -3,4 +3,15 @@
 require "rango"
 require "rango/controller"
 require "rango/environments"
+require "rango/mixins/rendering"
+require "rango/mixins/message"
+require "rango/mixins/filters"
 require "rango/rack/middlewares/basic"
+
+module Rango
+  class StackController
+    include ExplicitRendering
+    include FiltersMixin
+    include MessageMixin
+  end
+end

Added Rango::StackController which is more complete than just basic Rango::Controller