- Simplified the 'anonymous poster settings' of the comment module and
  made it possible to enforce a username/e-mail address.  Based on
  James Seng's work there are now 3 radio buttons:

   ( ) Anonymous users may not enter contact information
   ( ) Anonymous users may leave contact information
   ( ) Anonymous users must leave contact information

- Fixed a bug in the default theme_comment_view() function.

- Added permalinks for comments.  Requested by Michael and Christina.
  Maintainers of contributed themes might want to add permalinks too.

TODO:

- Fix the interaction design of the submission form: the page you are
  directed to and the validation of the contact information.

- Changing the comment viewing options appears to be broken?