[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.

[RIP-10]Optimize the test case for DefaultMessageStore.CleanCommitLogService and DefaultMessageStore.CleanConsumeQueueService (#939)

[RIP-10]Optimize the test case for DefaultMessageStore.CleanCommitLogService and DefaultMessageStore.CleanConsumeQueueService

[RIP-10]HA test case optimization and reduce the time spent

[RIP-10] Fix-ScheduleMessageServiceTest

[RIP-10]fix-bug: ScheduleMessageServiceTest 

[RIP-10]  Add test cases for DefaultMessageStore.CleanCommitLogService and DefaultMessageStore.CleanConsumeQueueService (#836)

[RIP-10]  Add test cases for DefaultMessageStore.CleanCommitLogService and DefaultMessageStore.CleanConsumeQueueService

* Add test case for CommitLog.handleHA

* Add one UUID parent path for RocketMQ's files

[RIP-10] Fix junit bug in ScheduleMessageServiceTest

[RIP-10] Optimize test batch send message use cases

[RIP-10] Add  test cases of  ScheduleMessageService

[RIP-10]Add test cases for DefaultMessageStore which methods read from CommitLog/ConsumeQueue (#778)

[RIP-10]Add test cases for DefaultMessageStore which methods read from CommitLog/ConsumeQueue

[RIP-10]Add test cases for DefaultMessageStore.putMessages(MessageExtBatch)