https://angela.zipwhip.com/issues/14745 add "version" field to bind request (for future use)
 https://angela.zipwhip.com/issues/14756 Trim down the json that is sent to the client (DeliveredMessage)
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/com/zipwhip/api/signals/SignalProviderImpl.java