merge
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
Merge branch 'master' of https://github.com/SensorServicePlatform/HANAPlatform
fix the bug for get_all_devices