merge -c2823 from branch 2.0 to trunk

- removed some unused constants from constants.php
- removed some unused css rules
- removed unused code

git-svn-id: http://piwigo.org/svn/trunk@2824 68402e56-0260-453c-a942-63ccdbb3a9ee

include/constants.php

@@ -33,12 +33,6 @@ define('PHPWG_DEFAULT_TEMPLATE', 'yoga/Sylvia');
 define('REQUIRED_PHP_VERSION', '5.0.0');
 define('REQUIRED_MYSQL_VERSION', '4.1.22');
 
-// Error codes
-define('GENERAL_MESSAGE', 200);
-define('GENERAL_ERROR', 202);
-define('CRITICAL_MESSAGE', 203);
-define('CRITICAL_ERROR', 204);
-
 // Access codes
 define('ACCESS_FREE', 0);
 define('ACCESS_GUEST', 1);
@@ -107,4 +101,4 @@ if (!defined('PLUGINS_TABLE'))
 if (!defined('OLD_PERMALINKS_TABLE'))
   define('OLD_PERMALINKS_TABLE', $prefixeTable.'old_permalinks');
 
-?>
+?>