EMQ 2.3.5正式版发布， 支持基于TLS连接集群

EMQ 2.3.5 版本发布，新增 etc/ssl_dist.conf 配置文件，正式支持基于 TLS 连接集群。

Bug 修复和增强

• Feature: Add etc/ssl_dist.conf file for erlang SSL distribution (emq-relx#178)

• Feature: Add node.ssl_dist_optfile option and etc/ssl_dist.conf file (#1512)

• Feature: Support Erlang Distribution over TLS (#1512)

• Improve: Tune off the 'tune_buffer' option for external MQTT connections (#1512)

emq-sn

• Clean registered topics if mqtt-sn client send a 2nd CONNECT in connected state (#76)

• Upgrade the esockd library to v5.2.1 (#76)

emq-auth-http

• Remove 'password' param from ACL and superuser requests (#66)

源码：https://github.com/emqtt/emqttd/releases/tag/v2.3.5