Is there a user-management plugin for grails?

Nearly every website requires things like:

* Users Login/Authentication
* Registration (w/ email verification)
* Forgotten email reminders User
* User Profiles

Are there any Grails plugins/frameworks/whatever that provide things like this as a base to build upon?

I know how to build these things, so I'm not looking for that type of answer. It just seems silly for every person out there to re-implement this type of basic functionality.

A similar example in Java would be AppFuse, but that is far more involved than what I'm looking for here.