* Add return value to update_state

* Add timeout decorator

* Add 30 sec timeout for check and update state

* Update user state when all tasks are done

* Update delete user script

Remove user state records from db

* Add timeout to rabbit config

* User timeout variable for check and update state

* Update timeout variable name

* Add 'queuename' attribute to the database.
* Add 'queuename' to current dictionary.
* Create routing key for next level of agents based on 'queuename' rather then 'username'

When merging mail_config and rabbit_config,
 there's two Server in both files for different purposes

was saved before, but will cause message remind in queue if timeout

If found the user in DB, restore task status

avoiding referencing to the same list

Default to check every 30 seconds
Will inform caller and remove from tracking

When complete or terminated