Install plugin view paths into AM view load path

railties/lib/rails/plugin.rb

@@ -50,7 +50,11 @@ def load_tasks
     end
 
     initializer :add_view_paths, :after => :initialize_framework_views do
-      ActionController::Base.view_paths.concat ["#{path}/app/views"] if File.directory?("#{path}/app/views")
+      plugin_views = "#{path}/app/views"
+      if File.directory?(plugin_views)
+        ActionController::Base.view_paths.concat([plugin_views]) if defined? ActionController
+        ActionMailer::Base.view_paths.concat([plugin_views])     if defined? ActionMailer
+      end
     end
 
     # TODO Isn't it supposed to be :after => "action_controller.initialize_routing" ?
@@ -62,4 +66,4 @@ def load_tasks
       end
     end
   end
-end
\ No newline at end of file
+end