public static function d($message, $tags = array())
    {
        
		self::singleton()->log(self::DEBUG_LEVEL, $message, $tags);
        
    }
public static function d($message, $tags = array())
    {
        
		self::singleton()->log(self::DEBUG_LEVEL, $message, $tags);
        
    }
public static function d ( $ message , $ tags = array ( ) ) { self :: singleton ( ) -> log ( self :: DEBUG_LEVEL , $ message , $ tags ) ; }
debug logs fine grained informations for debugging

@access public
@author Joel Bout, <joel.bout@tudor.lu>
@param  string $message
@param  array $tags
@return mixed
debug logs fine grained informations for debugging