Add work time, merge after DB has worktime field in cinderella_sum table
Merge pull request #15 from oisy/beijing

button scale
Worktime merged into master:
Merge branch 'beijing' of https://github.com/healerkx/NuclideDataCenter into beijing
add new device config
Merge branch 'beijing' of https://github.com/healerkx/NuclideDataCenter into beijing