checkIgnore doesn't pass parameters

[bretto36]

https://github.com/rollbar/rollbar-php/blob/master/src/Config.php#L292

I'm trying to implement checkIgnore on 1.0.1 and i am getting warnings about missing paramaters

My config entry

checkIgnore' => function ($isUncaught, $exception, $payload) {
                print_r($exception);
                return false;
}

I don't see where this is passing any parameters? The documentation says it should be passing 3 parameters
```
if (isset($this->checkIgnore) && call_user_func($this->checkIgnore)) {
return true;
}