#374869 by webchick, smk-ka: Denying access to the user registration form at the menu callback level, not at the form level, for better compatibility with other modules.

#203812 by yhager: Added support for parsing emails within angled brackets (like 'NAME <user@domain>').

#310775 by Barrett, sun: Fixed SQL error when no emails are left after filtering out registered users.

#303558 by sangamreddi: Database field 'canceled' is created as 'cancelled' during update from earlier versions.

#229803 by will_in_wi: Restored capability for admins to create users when operating in "by invitation only" mode.

- Updated README.