add support for specifying a maximum for message number of delivery attempts 
before moving messages to a dead letter queue
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                 Key: QPID-3173
                 URL: https://issues.apache.org/jira/browse/QPID-3173
             Project: Qpid
          Issue Type: New Feature
          Components: Java Broker, Java Client
            Reporter: Robbie Gemmell
             Fix For: Future


add support for specifying a maximum for message delivery attempts before 
moving messages to a dead letter queue.

At a basic level, the features will work as follows: the consumer track the 
number of times it has seen a message without successful delivery, and when 
this count is met/exceeded then during session rollback or recover it will 
cause the message to be rejected with request not to be requeued. The broker 
will be able to be configured when creating a queue as to whether or not it 
need support such dead-lettering and set up the requisite alternate exchange to 
route the messages to when they are rejected in this way. If enabled, then a 
fanout exchange will be created as the alternate exchange for the queue with a 
single queue bound, such that there is a 1:1 mapping of original queue and DLQ.

See QPID-2970 and children for reference and implementation work for older 
codebase.

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