ZOOKEEPER-1633. Introduce a protocol version to connection initiation message (Alexander Shraer via michim)


git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1463399 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1697:  large snapshots can cause continuous quorum failure
  (phunt via fpj)



git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1481322 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1706. Typo in Double Barriers example (Jingguo Yao via fpj)



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ZOOKEEPER-1642. Leader loading database twice (fpj via camille)

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ZOOKEEPER-1663. scripts don't work when path contains spaces (Amichai Rothman via camille)

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  ZOOKEEPER-1714 perl client segfaults if ZOO_READ_ACL_UNSAFE constant is used
  (Botond Hejj via camille)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1495523 13f79535-47bb-0310-9956-ffa450edef68
  ZOOKEEPER-1719. zkCli.sh, zkServer.sh and zkEnv.sh regression caused by ZOOKEEPER-1663
  (Marshall McMullen via camille)

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ZOOKEEPER-1702. ZooKeeper client may write operation packets before receiving successful response to connection request, can cause TCP RST (Chris Nauroth via phunt)

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ZOOKEEPER-1629. testTransactionLogCorruption occasionally fails. (shralex via camille)

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ZOOKEEPER-1629. testTransactionLogCorruption occasionally fails. (shralex via camille)

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ZOOKEEPER-1731. Unsynchronized access to ServerCnxnFactory.connectionBeans results in 
  deadlock. (Dave Latham via camille)
  

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Merge remote-tracking branch 'apache/branch-3.4' into weblogic-sasl-bug