First pass to add new user SQL model

includes/session.php

@@ -6,11 +6,11 @@ ini_set("session.cookie_lifetime",60*60*24*30);
 session_start();
 
 $user = new User();
-$user->role == 0; // All users are visitors
+$user->rank == 'visitor'; // All users are visitors
 
 if(isset($_SESSION['userid'])) {
 	$user->checkID($_SESSION['userid']);
-	if ($user->id != 0) {
+	if ($user->get_id() != 0) {
 		$user->updateLoginDate();
 		$user->populate();
 		setlocale(LC_ALL, $config['locales'][$user->locale][4]);