fixbug when upload pics at quickmode - demand by fuqing
use winston instead of log4js
Merge pull request #30 from changyou/feature/newLogger

use winston instead of log4js
Merge pull request #31 from changyou/quickmode

fixbug when upload pics at quickmode - demand by fuqing
style output logs
Merge pull request #32 from changyou/feature/newLogger

style output logs