fixed issue #154 on SOL003 subscriptions - v2.7.1

...3/VNFFaultManagement-API/FaultManagement-APIKeyword.robot

SOL003/VNFFaultManagement-API/Subscriptions.robot

SOL003/VNFFaultManagement-API/environment/variables.txt

SOL003/VNFIndicator-API/VNFIndicatorsKeywords.robot

SOL003/VNFIndicator-API/environment/variables.txt

SOL003/VNFIndicator-API/jsons/subscriptions.json

SOL003/VNFLifecycleManagement-API/SubscriptionKeywords.robot

SOL003/VNFLifecycleManagement-API/Subscriptions.robot

...FLifecycleManagement-API/VnfLcmMntOperationKeywords.robot

...ifecycleManagement-API/jsons/lccnSubscriptionRequest.json

...FPackageManagement-API/VNFPackageManagementKeywords.robot

SOL003/VNFPackageManagement-API/jsons/PkgmSubscription.json

SOL003/VNFPackageManagement-API/jsons/subscriptions.json

...sourcesQuotaAvailableNotification-API/Subscriptions.robot

...otaAvailableNotification-API/VRQANOperationKeywords.robot