ZOOKEEPER-1551. Observers ignore txns that come after snapshot and UPTODATE (thawan, fpj via thawan)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1530035 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1781. ZooKeeper Server fails if snapCount is set to 1 (Takashi Ohnishi via phunt, breed)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1530111 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1774. QuorumPeerMainTest fails consistently with complains about host" assertion failure (phunt)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1530155 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1771. ZooInspector authentication (Benjamin Jaton via phunt)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1530160 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-877. zkpython does not work with python3.1 (Daniel Enman via phunt)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1530167 13f79535-47bb-0310-9956-ffa450edef68