Use fullname not name when constructing URLs for emails
    
    This corrects the URLs for namespaced projects. It should also
    work for forks, though I think we don't expect to send email
    for forks.
    
    Fixes https://pagure.io/pagure/issue/1527
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com></awilliam@redhat.com>