1.支持多集群客户端，服务端
2.支持统计用户在系统精准的使用时间

解决sse会出现死锁的错误
Found one Java-level deadlock:

"http-nio-8080-exec-200":
waiting for ownable synchronizer 0x00000006e8a19310, (a java.util.concurrent.locks.ReentrantLock$NonfairSync),
which is held by "541811274-3420160RemoteConnectionService-IO-10"
"541811274-3420160RemoteConnectionService-IO-10":
waiting for ownable synchronizer 0x00000006ea96afe8, (a java.util.concurrent.locks.ReentrantLock$NonfairSync),
which is held by "541811274-118784RemoteConnectionService-IO-11"
"541811274-118784RemoteConnectionService-IO-11":
waiting for ownable synchronizer 0x00000006e8a19310, (a java.util.concurrent.locks.ReentrantLock$NonfairSync),
which is held by "541811274-3420160RemoteConnectionService-IO-10"

Java stack information for the threads listed above:

"http-nio-8080-exec-200":
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006e8a19310> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)

缩短RedisServiceDiscoveryService的redis-key

hotfix：RedisServiceDiscoveryService读取超时错误

1.集群-支持redis服务发现

1.修改AsyncRestTemplate默认值：readTimeout从10秒改为1秒，connectTimeout从2秒改为0.5秒
2./connect/disconnect.do接口逻辑变更：如果本地disconnect成功，不再广播集群
3.ConnectionByUserIdDTO增加字段accessTenantId
4.连接成功后，（设备ID+租户ID+用户ID+域名）确定唯一性后，如果超过clientIdMaxConnections，则踢掉。旧逻辑是（设备ID+用户ID）确定唯一性后

fix 报异常java.lang.IllegalStateException: ResponseBodyEmitter has already completed

1.支持控制集群整体域名下的最大连接数

发布1.2.5
1.支持connect-close事件

解决多网卡选择错了网卡