In node/259187, joachim posted an issue about removing IP addresses. This is now fixed in this release. Also, joachim suggested adding a description in the administration menu. I've added the description and have moved the ipAuthenticator from the settings section to the user's section in the administration page.
This release has been created to comply with Drupal's coding standards. Also there has been a renaming of the module name. I would suggest that you uninstall your current version before installing this version of IP authenticator. The single database change is the change in the table name; other than that, the database structure has remained the same.