XD-1551 Fix banner test
XD-1378: Add options to the log module
XD-1547: Clean old entries in deployments/modules

The admin leader is responsible for removing containers in
/xd/deployments/modules. However if a container shuts down
without an admin leader running, the entries are not
cleaned up.

This change in the admin leader will cause it to clean up
old entries immediately upon its election.