Mozilla Persona login support in Koha

Now that bug 9587 has been pushed up into the master branch of the Koha git repository, I’m pleased to say you can use Mozilla Persona to log into a Koha public interface. It works by using the email address the borrower has set as their primary email to match a borrower to the user logged into Persona. Since applications like Drupal and Mahara also support Persona you can implement a simple single sign on solution with very minimal effort. But the main win is we allow borrowers to login without needing to remember yet another username and password.