merge#239
Merge branch 'data2' of ssh://github.com/IbpTeam/demo-rio into data2_xiquan
Merge pull request #240 from v11985/data2

Data2 ->xiquan
merge#240
Merge branch 'data2' of ssh://github.com/IbpTeam/demo-rio into data2_xiquan
修复部分writeFile EXIST问题。
fix
fix
fix
Merge pull request #241 from shuanzi/data2_xiquan

Data2_xiquan->wangfeng
1.Change to pullFromOtherRepo  2.Fix bug: Unkown utils 3.Complete write DB when file add/rm/ch