Merge pull request qiniu#256 from rwifeng/change_log_delete_after_days

Change log delete after days

Merge pull request qiniu#244 from jemygraw/master

add cdn related functions to python sdk

Merge pull request qiniu#239 from ee0703/master

kirk更改为compute并更新changelog

update version

Merge pull request qiniu#222 from forrest-mao/master

support multi-zone

Merge pull request qiniu#213 from longbai/release_7.0.8

version update

Merge pull request qiniu#200 from longbai/pub_by_travis

pub_by_travis

Merge pull request qiniu#187 from longbai/unicode

dns hijack

Merge pull request qiniu#168 from longbai/master

multi zone

Merge pull request qiniu#157 from longbai/master

配置io/rs/rsf/api host