It should be possible (or default) to restrict the methods shown in the controller diagram to those which are visible
as 'actions', i.e. non-hidden public instance methods.

Reasons:
1) This way the diagram _closely_ corresponds to the sitemap of the application
2) For large application, the diagram can get considerably smaller
3) It helps a lot in checking permissions of controller methods

The basic patch is obviously trivial and attached.


Keep working on this nice plugin !