v2.0.0 - ZooKeeper 3.4.14

• 升级到 ZooKeeper 3.4.14
• 新增支持集群数据备份和恢复功能
• 新增支持自助查看和下载日志等文件
• 新增支持自助开启或关闭 REST 服务
• 禁止删除主节点以防止极端情况下数据丢失
• 修复从单节点扩容到多节点时可能丢失数据的问题

v1.3.1 - ZooKeeper 3.4.13

1. Support deployment to multiple available zones in a region.

v1.3 with ZooKeeper 3.4.13

1. Upgraded to ZooKeeper 3.4.13.
2. Added support for enabling super user to manage ACLs.
3. Exposed ZooKeeper configurable items like tickTime.
4. Optimized HealthCheck and monitoring metrics.

v1.0 with ZooKeeper 3.4.9

add license and readme