Merge pull request cubefs#363 from ssscottt/master

Update CHANGELOG from v1.5.0 to v1.5.1.

Merge pull request cubefs#341 from ssscottt/master

Update CHANGELOG.md

Update CHANGELOG.md

Release v1.4.0 - 2019/11/13
Signed-off-by: Liying Zhang <[email protected]>

Merge pull request cubefs#246 from chubaofs/dev

merge from dev to master

Merge pull request cubefs#199 from chubaofs/dev

merge dev to master

Merge pull request cubefs#85 from shuoranliu/release-changelog

release: update change log

Merge pull request cubefs#54 from wding109/faq

Add comparison with alternatives in FAQ

Merge pull request cubefs#58 from shuoranliu/add-contributing

Add CONTRIBUTING.md

Merge pull request cubefs#13 from awzhgw/master

fix some bug: