This class directly reflects the Leave verb documented at
http://www.twilio.com/docs/api/twiml/leave
All of the descriptions included in these javadoc comments
come directly from the twilio website.
Leave() - Constructor for class com.twilio4j.twiml.Leave
The Leave verb transfers control of a call that is in a queue so that the caller exits
the queue and execution continues with the next verb after the original Enqueue.