Merge pull request #14 from daowangli/dev

#7 Add lab test master integration logic
Merge pull request #15 from daowangli/dev

#4 Add clear cache method
Merge pull request #17 from daowangli/dev

#16 Jdbc register float column type
Merge pull request #19 from daowangli/dev

Dev
#21 IV
#21 IV
#21 IV configuration.
#21 IV configuration. Package config and log config.