#831 Support eureka servers configured with IP addresses
#833 Archaius2 client compatibility
#835 Remove use of deprecated static accessor
#838 Don't schedule TimeSupervisorTask if scheduler is shutting down
#841 remove governator dep for eureka-client
#842 update archaius2 version
#843 Refactoring AmazonInfo refresh into common class.
#844 Instance config should only add metadata if value is valid