Made necesseary fixes required to make the aggregative downstream api
integration to work with the new downstream messaging layer.
Also,fixed the case where daemon crashed when an application message
(from libnrm using pmpi) was received after container was killed
run_policy on all containers removed as the controller no longer has
application manager info
Any other refactoring and fixes required (check merge request
See Issues #13, #20 and Merge !41