Merge pull request qiniu#77 from qiniu/develop

Release v6.1.3

Update CHANGELOG.md

Merge pull request qiniu#60 from qiniu/develop

Release v6.1.1

Merge pull request qiniu#58 from qiniu/develop

Release v6.1.0

Merge pull request qiniu#51 from qiniu/develop

Release v6.0.1 (patch)

Merge pull request qiniu#42 from qiniu/develop

Release v6.0.0

uptoken, eu, etc

io.qbox.me => iovip.qbox.me

uptoken

support accessKey/secretKey