Apache Curator 3.0.0 发布，ZooKeeper 客户端简化

果果、

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　　Apache Curator 3.0.0 发布，该版本带来的对 ZooKeeper 的新的动态配置 APIs 的兼容，更新内容如下：
　　子任务

• 　　[CURATOR-160] - Support Dynamic Reconfig
  
• 　　[CURATOR-161] - Support Watcher Removal
  
• 　　[CURATOR-162] - Support Local Sessions
  
• 　　[CURATOR-214] - Support new create() APIs
  
• 　　[CURATOR-215] - Support async multi/transaction APIs
  
• 　　[CURATOR-217] - Use new Watcher Removal APIs in Curator Recipes
  
• 　　[CURATOR-247] - Extend Curator's connection state to support SESSION_LOST
  
• 　　[CURATOR-248] - Introduce pluggable error handlers
  
• 　　[CURATOR-249] - Update all Curator recipes to use new pluggable Error Handler
  
• 　　[CURATOR-253] - Use new injectSessionExpiration() in the test module
  
• 　　[CURATOR-265] - Dynamic Reconfig APIs needs some work and more accurate testing
  
• 　　[CURATOR-266] - Support updateServerList
  

　　Bug

• 　　[CURATOR-258] - PersistentEphemeralNode stops watching after first WatchedEvent
  
• 　　[CURATOR-260] - Fix tests in CURATOR-3.0
  
• 　　[CURATOR-268] - Curator client doesn't behave well when it loses connection: CRUD operation fail
  

　　提升

• 　　[CURATOR-159] - Parent Task for ZooKeeper 3.5.0 support
  
• 　　[CURATOR-186] - Port Curator to Jackson FasterXML library from Jackson Codehaus library
  
• 　　[CURATOR-257] - Thread.sleep in TestingZooKeeperMain.blockUntilStarted is costly for unit tests
  
• 　　[CURATOR-261] - ZooKeeper 3.5.x has enough APIs so that Javassist can be removed
  

　　新特性
　　

• 
  　　[CURATOR-259] - Add try-with-resources>
  

　　详情请看发行日志。
　　下载：http://www.apache.org/dyn/closer.cgi/curator/
　　
　　zookeeper 的客户端调用过于复杂，Apache Curator 就是为了简化zookeeper客户端调用而生，利用它，可以更好的使用zookeeper。