Refactor DB foreign keys to auto_incrementing id instead of onion

Allows moving domains into separate table at a later stage

var/www/common.php

@@ -4,7 +4,7 @@ const DBUSER='hosting'; // Database user
 const DBPASS='MY_PASSWORD'; // Database password
 const DBNAME='hosting'; // Database
 const PERSISTENT=true; // Use persistent database conection true/false
-const DBVERSION=3; //database layout version
+const DBVERSION=4; //database layout version
 const CAPTCHA=0; // Captcha difficulty (0=off, 1=simple, 2=moderate, 3=extreme)
 const ADDRESS='dhosting4okcs22v.onion'; // our own address
 const SERVERS=[ //servers and ports we are running on