- work agains items + some random fixes .. use own item-table

- do not display serverside events in calendar
- include gems in item comparison .. also parse their stats in setup
- filters use conditions and are more restrictive
- changed DBSimple version so it uses mysqli (mysql is deprecated as of php 5.5)
- moved each filter class to matching type; file for baseType and BaseFilter
- baseType querys are somewhat modular, trying to avoid ridiculous joins that WILL occur sometimes (especially with items) as far as possible

index.php

@@ -12,6 +12,9 @@ if (!file_exists('config/config.php'))
 // include all necessities, set up basics
 require 'includes/kernel.php';
 
+if ($AoWoWconf['maintenance'] && !User::isInGroup(U_GROUP_EMPLOYEE))
+    $smarty->brb();
+
 switch ($pageCall)
 {
     /* called by user */