fixed VerifyFuturesubscription_Test()
fixed efficiency of VerifyRHELWorkstationSubscription(); was taking
800 seconds to run before skipping; was also skipping when more than
one product cert was installed even on a Workstation.
reduced the number of subscribes in VerifyEntitlementStartDate_Test()
added VerifyAutohealAttributeDefaultsToTrueForNewSystemConsumer_Test()