* cache $db->hasTable and $db->hasColumn functions

* changed tableExist and fieldExist to $db->hasTable(table) +
$db->hasColumn(table, column)
* new configurable: database_log - can log database queries and show in
website source when logged as super admin
* removed debug_level configurable, enabled by default when logged on
super admin
* added OTS_Account:getCountry()
* added posibility to load OTS_Player partially, and without skills
* (internal) changed depracated $ots->createObject() functions with
their OTS_ equivalents
* (internal) removed unused code

system/migrations/17.php

@@ -1,6 +1,6 @@
 <?php
 
-if(!tableExist('myaac_menu')) {
+if(!$db->hasTable('myaac_menu')) {
 	$db->query("
 CREATE TABLE `myaac_menu`
 (