Merge pull request qiniu#278 from sxci/update_chunksize

修改一个测试[ci skip]

Merge pull request qiniu#272 from longbai/pandora2

add pandora

Merge pull request qiniu#271 from sxci/7.3.8

7.3.8

fix resumable get up host error, old logic will get up host one by on…

…e rather than changing by encountering error

Merge pull request qiniu#246 from sxci/7.3.3

 7.3.3

Merge pull request qiniu#229 from longbai/release_7.3.2

update travis

Merge pull request qiniu#225 from longbai/multizone-auto

Multizone auto

Merge pull request qiniu#222 from longbai/multizone-auto

multizone auto

Merge pull request qiniu#220 from longbai/add_net_ready

Add net ready

Merge pull request qiniu#210 from longbai/file_size_long

use long present file size for resume uploader