bump config version, because of DIGEST_HOSTNAME option

config.php-dist

@@ -137,7 +137,7 @@
 	define('DIGEST_HOSTNAME', 'madoka.spb.ru');
 	// Hostname for email digest signature
 
-	define('CONFIG_VERSION', 4);
+	define('CONFIG_VERSION', 5);
 	// Expected config version. Please update this option in config.php
 	// if necessary (after migrating all new options from this file).
 

sanity_check.php

@@ -1,5 +1,5 @@
 <?php
-	define('EXPECTED_CONFIG_VERSION', 4);
+	define('EXPECTED_CONFIG_VERSION', 5);
 
 	if (!file_exists("config.php")) {
 		print "<b>Fatal Error</b>: You forgot to copy