Missed line in coverting $options to array from Registry class

Getting the following error when making an Oauth2 call using Facebook:

    Fatal error: Call to a member function get() on a non-object in ... Joomla/Http/Transport/Stream.php on line 126

The line seems to be a place where `$options` was not switched to using an array from the old Registry method:

    $options['follow_location'] = (int) $this->options->get('follow_location', 1);

Pull request coming in a bit.