Added dev/prod config

www/index.php

@@ -6,8 +6,8 @@ $config=dirname(__FILE__).'/protected/config/main.php';
 
 // remove the following lines when in production mode
 defined('YII_DEBUG') or define('YII_DEBUG',true);
-// specify how many levels of call stack should be shown in each log message
-defined('YII_TRACE_LEVEL') or define('YII_TRACE_LEVEL',3);
+// dev or prod - merges settings with respective file
+defined('YII_CUSTOM_ENV') or define('YII_CUSTOM_ENV', 'dev');
 
 require_once($yii);
 Yii::createWebApplication($config)->run();