katgirl/avatar — pull request #2 by tristanlins (2013-04-14 08:31:14+00:00)
Title: Provide empty presetting of $GLOBALS[TL_CONFIG][avatar_dir] for Contao 3.1

Otherwise it will break up, when changing the avatar directory in the system settings with a bad request.
see https://github.com/contao/core/blob/develop/system/modules/core/classes/Ajax.php#L265