Webinar key converted to float

[Mat-Moo]

I would do a pull requrest, but I've already had to make a couple of other changes to the code to suit my need, however my biggest issue has been the Webinar key being converted to a float (I've also added the ID as an additional public field) - Fix for this is

ServiceAbstract.php
Function SetResponse
$this->response = (array) json_decode($response, true, 512, JSON_BIGINT_AS_STRING);

Hope this helps