public function get($key = null, $default = null)
	{
		$return = $this->data;

		if ($key !== null) {
			$keys = explode('.', $key);

			foreach ($keys as $key) {
				if (isset($return[(string) $key])) {
					$return = $return[$key];
				} else {
					$return = $default;
					break;
				}
			}
		}

		return $return;
	}