* Remove the useless files
* Replace PermSize with MetaspaceSize, details see http://openjdk.java.net/jeps/122
* Update DLedgerCommitLog.java (#1145)
Delete useless code
* Remove the duplicate content
* Polish the comment (#1107)
* Minor Typo fix (#860)
* [ISSUE #1082] Fix disconnection of HA (#1083)
* fixed the text description in chinese doc (#1339)
* fix /dev/shm not found on some OSs (#1345)
* Refactor the protection logic when pulling
* change the MQVersion variable to rocketmq 4.5.2 version;
* Minor polish
* Fix the wrong package name
* [maven-release-plugin] prepare release rocketmq-all-4.5.2
* [maven-release-plugin] prepare for next development iteration
* [RIP-15]Add Ipv6 support for RocketMQ
* [issue#1164]return the codes to original reput method part.
* [issue#1164]fix issue that Consumer Instance can't consume message from slave when cluster is in the high level tps and master has been killed.
* [issue#1164]if the broker is a master node,then modify reputFromOffset correctly.
* [issue#1164]add some coding comments.
* [ISSUE#1156]new mqadmin API for ACL configuration.Add dataVersion and write data to acl yaml config file in the acl module.
* [ISSUE#1156]add unit test cases for new acl mqadmin API command which adding dataversion part.
* [ISSUE#1156]implement update,delete and query Acl config version in new acl mqadmin API command.
* [ISSUE#1156]polish and optimize the implementation for new acl mqadmin API command.
* [ISSUE#1156]fix the issues that topicPerms and groupPerms can't be updated and there is NPE when querying acl config version.
* [ISSUE#1156]fix small issue that specify wrong plainAccessConfig attribute,the correct one is AccessKey.
* [ISSUE#1156]add updateGlobalWhiteAddr subcommand codes for mqadmin acl command.
* [ISSUE#1156]adjust some codes for cluster acl config version list in the mqadmin acl commands.
* [ISSUE#1156]add acl mqadmin command part in the acl user_guide docs.
* [ISSUE#1156]polish and optimize some part of acl mqadmin command codes.
* [ISSUE#1156]fix code comments issue that the first letter needs to be capitalized and adjust the contents of acl user_guide.
* [issue#1078]fix User can't use mqadmin command normally if they don't copy the tool.yml file to their related fold and AclEnable flag is closed.
* [issue#1147]Broker will report Exception if open the aclEnable and enableDLegerCommitLog flag at the same time.
* [issue#1147]Broker will report Exception if open the aclEnable and enableDLegerCommitLog flag at the same time.
* [issue#1147]Add the restriction of Acl in the acl's user guide.
* [issue#1147]Adjust some codes for acl issue that users can't open the aclEnable and use Master/Slave or Dledger the same time.
* [issue#1147]Adjust and optimize some codes for acl issue that users can't open the aclEnable and use Master/Slave or Dledger the same time.
* [issue#1147]return back for original codes for acl issue that users can't open the aclEnable and use Master/Slave or Dledger the same time.
* [issue#790]fix defaultTopicPerm and defaultGroupPerm values which are in the yaml config file doesn't work.
* [issue#790]fix defaultTopicPerm and defaultGroupPerm doesn't work,fix the unit test.
* [issue#789]fix NullPointerException in the PlainAccessValidator#parse() method when recieved some admin request command,if configed no aclRPCHook.
* [issue#790]fix defaultTopicPerm and defaultGroupPerm values which are in the yaml config file doesn't work.
* [issue#790]fix defaultTopicPerm and defaultGroupPerm doesn't work,fix the unit test.
* [ISSUE#662]capitalizing the first letter in comments and removing the unless comments for acl and msg trace feature codes.
* [ISSUE#662]polish the acl feature codes.
* prepare to separate production-ready projects from the external projects
* Update fastjson to the latest stable version
* Clean code, don't list the default config in JVM
* Update README.md
* update the year info in NOTICE
* Release semaphore when timeout
* [ISSUE#525]add aclClient PRCHook for message track
* [ISSUE#525]add the apache license text,remove the merged from master branch
* [ISSUE#525]add aclClient PRCHook for message track,remove the merged content of notice and readme.md from master branch,add some unit test to increase the code coverage.
* [ISSUE#403] fix some bugs and Optimization code for rocketmq's acl feature.
* [ISSUE#403] fix some bugs and Optimization code for rocketmq's acl feature.
* Update MQAdminStartup.java
* Update MQAdminStartup.java
* [ISSUE#403] add some test case,increasing code coverage
* [ISSUE#403] add some test case,increasing code coverage
* [ISSUE#403] fix some bugs and Optimization code for rocketmq's acl feature.
* [ISSUE#403] fix some bugs and Optimization code for rocketmq's acl feature.
* Update MQAdminStartup.java
* Update MQAdminStartup.java
RongtongJin