Push notifications format issue #129
Description
Greetings, it looks like pn_push is set incorrectly here https://github.com/pubnub/go/blob/master/publish_push_helper.go#L91 and should be something like response["pn_apns"]["pn_push"] = apns2.
Documentation backs it up https://www.pubnub.com/docs/push/ios#step-5a-constructing-apns-payloads plus a few tests we did internally.