[ISSUE #1528]modify unit test of producer

[RIP-16]Support request/response pattern

* change the way to create newGroupChannelTable

[ISSUE #1564]Fix the ip filter logic in ipv6/ipv4 coexist environment

[ISSUE #1568] rocketmq need enhance stability when commitlog broken

增加非空判断，防止空指针异常,导致循环事务 check,增加test覆盖，修复编码格式
原因，消息太长压缩后重复解压

[#1568] rocketmq need enhance stability when commitlog broken  增加非空判断，防止空指针异常,导致循环事务 check,增加test覆盖，修复编码格式

Revert "[#1568] rocketmq need enhance stability when commitlog broken  增加非空判断，防止空指针异常,导致循环事务 check,增加test覆盖，修复编码格式"

This reverts commit a4f62104

 增加非空判断，防止空指针异常,导致循环事务 check,增加test覆盖，修复编码格式

 增加非空判断，防止空指针异常,导致循环事务 check,增加test覆盖，修复编码格式

 增加非空判断，防止空指针异常,导致循环事务 check,增加test覆盖

 增加非空判断，防止空指针异常,导致循环事务 check

 增加非空判断，防止空指针异常,导致循环事务 check

fix cacography

[ISSUE #1519]Optimise performance/stability of  transaction message

[ISSUE #1526]modify docs-cn description error

[RIP-10] Add test cases for ConsumeMessageOrderlyService#consumeMessageDirectly

#	broker/src/main/java/org/apache/rocketmq/broker/BrokerController.java

[ISSUE #1528]bug fix for unit tests of DefaultMQProducer 

[ISSUE #1464] Fix the issue that master node route info was lost when the node joined the group in dledger mode

[ISSUE #1528] mocking related functions to make producer get right topicrouteinfo and invoke callback functions

[ISSUES #1537] Polish docs/cn/RocketMQ_Example.md producer example

[ISSUE #1535] Fix ha sync transfer timeout

[#1540] transaction message ignore delaytimelevel parameter