ox-it/wl-external-calendaring-service — pull request #7 by bdvholmes (2014-02-05 12:18:18+00:00)
Title: WL-3170 Creator email can be blank

Despite defining a method `createMailURI` to handle an empty or null email address, this was still only
being called if the email address was non-empty.

I must have assumed that this was the desired behaviour since this matches the tests.