update version in pom.xml
Merge pull request #66 from coaku/feature/b_xzk_update_pom_xml_version

update version in pom.xml
fix PutPolicy bug
Merge pull request #73 from icattlecoder/bugfix_putPolicy

fix PutPolicy bug
Update CHANGELOG.md
Update CHANGELOG.md
Update pom.xml
Merge pull request #74 from qiniu/develop

Release 6.0.1