Grant block permission to users without having administer users

Issue Summary

People who are very good at finding spam only really need permission to block the spammers, not edit any node on drupal.org. I uploaded a module I built that will add a link that merely toggles roles and active/blocked to my sandbox: http://cvs.drupal.org/viewvc.py/drupal/contributions/sandbox/deekayen/mo...

It's not exactly ideal for d.o, but might be a start. User Read-Only might be another option to start from. The complex issue in this is that the spam hunters need to be able to edit profiles, to delete profile spam as well, which is what User Read-Only could help with. I have a loose policy on adding maintainers - so if someone wants to take this task up for d.o, just tell me when you add yourself as a maintainer if you hop on User Read-Only.