Update MyRadio_User.php

Made local name search include email_domain as the eduroam field no longer include the eduroam suffix.
Update MyRadio_User.php

Made findByEmail more specific. This should be tested somewhere first - if that function doesn't work auth will break.
Update MyRadio_User.php
Merge pull request #74 from UniversityRadioYork/localname

Update MyRadio_User.php - local alias search