Merge pull request apache#873 from ShannonDing/codecove_failed

[ISSUE apache#872] fix code coverage shell error in travis ci yml.

Merge pull request apache#873 from ShannonDing/codecove_failed

[ISSUE apache#872] fix code coverage shell error in travis ci yml.

fix the bug caused in HA cluster in consumer (apache#723)

fix the bug caused in HA cluster in consumer (apache#723)

(cherry picked from commit 4065610)

[ISSUE apache#568] Update lastPullTime use atomic.Value as same with …

…lastConsumeTime and lastLockTime (apache#613)

[ISSUE apache#568] Update lastPullTime use atomic.Value as same with …

…lastConsumeTime and lastLockTime (apache#613)

fix(nameserver): panic in nameserver size is changed. (apache#529)

Support log level set and add more log in offset. (apache#489)

* Add log print for offset manager by broker

* modify log level for offset

* Support log level set

[ISSUE apache#473] support nsresolver in TraceConfig

keep NamesrvAddrs config and add Resolver for TraceConfig

[ISSUE apache#473] support nsresolver in TraceConfig

keep NamesrvAddrs config and add Resolver for TraceConfig