archwiki: Use SMTP to queue mail

sendmail doesn't work from php due to our service file disabling setuid.
Use SMTP just like the other services do.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

roles/archwiki/templates/LocalSettings.php.j2

@@ -34,6 +34,15 @@ $wgFunnyQuestionHash = '2341Euchah1Aev6eejoo5waf';
 $wgFunnyQuestions = array();
 $wgFunnyQuestions['en']['What is the output of "pacman -V|base32|head -1"'] = "BIQC4LJNFYQCAIBAEAQCAIBAEAQCAIBAEAQCAICQMFRW2YLOEB3DKLRQFYZCALJANRUWEYLMOBWS";
 
+$wgSMTP = array(
+ 'host'     => "localhost", // could also be an IP address. Where the SMTP server is located
+ 'IDHost'   => "wiki.archlinux.org",      // Generally this will be the domain name of your website (aka mywiki.org)
+ 'port'     => 10027,                 // Port to use when connecting to the SMTP server
+ 'auth'     => false,               // Should we use SMTP authentication (true or false)
+ #'username' => "my_user_name",     // Username to use for SMTP authentication (if being used)
+ #'password' => "my_password"       // Password to use for SMTP authentication (if being used)
+);
+
 # End of automatically generated settings.
 
 # Add more configuration in the file included below.