Added support for webhookUrl and webhookId.

[dboskovic]

I added the ability to set your webhook callback in a request. Example below.

$fullcontact = new Services_FullContact_Person($apikey);
$fullcontact->setWebhookUrl('http://requestb.in/15zahug1');
// $fullcontact->setWebhookUrl('http://requestb.in/15zahug1','test-webhook'); // with webhookId
$result = $fullcontact->lookupByEmail('bart@fullcontact.com');

Since other endpoints use the webhookUrl, I set that on the main service rather than just the Person service. I also removed the urlencoding on the api key since http_build_query already does that.

[cdave3]

@eentzel, can we get this merged please?

Excluding comments, its only around 10 lines of code.

[dboskovic]

🏆 for the longest code review ever 😂

[CharlieSu]

Sorry for the delay, merging this now.

[cdave3]

Awesome! Thanks @CharlieSu 👍