* update: the period to a comma

* Update Concept.md

* Update Concept.md

Polish message trace default trace topic implementation

[ISSUE #1164]Fix Consumer Instance can't consume message from slave when cluster is in the high level tps and master has been killed. (#1181)

* [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#1164]Consumer Instance can't consume message from slave when the TPS of cluster is in the high level and master has been killed.

[ISSUE #1147]Broker will report Exception if open the aclEnable and enableDLegerCommitLog flag at the same time. (#1149)

* [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.

* Add nameserver host support

* Polish namespace auto obtain feature

[ISSUE #1120]Add new feature: support namespace

[ISSUE #1078]fix User can't use mqadmin command normally if they don't copy the tool.yml file to related fold and AclEnable flag is closed.  (#1079)

* [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.

Modified the format of README.md

Modified the format of deploy_guide.md

Modified the format of quick_start.md

Modified the format of  RocketMQ_Example.md

Modified the format of architecture.md

Modified the format of features.md

modify the format of concept.md

[ISSUE #1086] Fix NullPointerException in PlainPermissionLoader if permissions are not configured(with admin user)

[RIP-9] Update Future.md. Add Function Title Number

[RIP-9] Remove unnecessary dots for Design_Trancation.md

[RIP-9] update Design_loadBlancing.md

[RIP-9] Modify English document for Design_Remoting.md

[RIP-9] New Change Configuration_System 90 : We recommend set 655350 - We recommend setting 655350

[RIP-9] Modify English document for Design_Trancation.md

[RIP-9] Add the system configuration option doc: Direct ByteBuffer me…