版本信息及地址qobx.me --> qiniu.com
 config添加CHARSET，EncodeUtils内修改
 PutPolicy 内修改
 IoApi 内修改
Revert " 版本信息及地址qobx.me --> qiniu.com"

This reverts commit 118febda31caca805a1746d386cfc4f1568f5b08.
Merge branch 'develop' of github.com:qiniu/java-sdk into update/charset_utf8
Merge pull request #107 from simon-liubin/update/charset_utf8

Update/charset utf8