Update blob.yml with ruby 2.0.0-p481
Update blob.yml with ruby 2.0.0-p481

cloudfoundry-incubator/v1-dummy-broker-release,cloudfoundry-incubator/v1-dummy-broker-release,cloudfoundry-incubator/v1-dummy-broker-release,cloudfoundry-attic/v1-dummy-broker-release,cloudfoundry-attic/v1-dummy-broker-release,cloudfoundry-incubator/v1-dummy-broker-release,cloudfoundry-attic/v1-dummy-broker-release,cloudfoundry-attic/v1-dummy-broker-release