Merge branch 'release/0.4.1' into develop
Update behaviour
Upgrade dnbl_mq to 0.4.4
Revise key-format and refactor
Update configurations for the test
Remove unnecessary codes and fix retrieving incorrect key-name
Support delay consumption
Revise delay time from 3sec to 1sec
Set environment values
Support inquiry statistics (50%)
Upgrade dnbl_mq
Mofify setup procs
Implement retrieving functions for clients. It's almost done.
Refactor a part of consumption of messages and remove unnecessary messages
Refactor
Modify for changed type of return value
switch branch to develop
Implement rotate-function(50%)
Implement rotate-function(75%)
Implement rotate-function(DONE)