add a new process to cleanup the service redis periodically in vcap_service_base

Change-Id: I86e074339b56aa49766bc05737a3da1464cb4ab4
[service ng]resize loop file if max_disk changed

Change-Id: I75de6cd4718f5144f8d1e67d63af91e322c42bd5
Merge "add a new process to cleanup the service redis periodically in vcap_service_base"
Merge "[service ng]resize loop file if max_disk changed"