new WireMail() prevents use of WireMailSmtp

[pointout]

Please see:
https://processwire.com/talk/topic/20733-e-mail-issues-with-loginregisterprofile-module/?tab=comments#comment-179661

Line 677
Please change
$mail = new WireMail();
to
$mail = wireMail();
to make use of WireMailSmtp

[adrianbj]

Note the PR to fix this from more than a year ago: #4