Updated harmless upgrade code
Updated harmless upgrade code

mattcui/bosh-softlayer-cpi-release,maximilien/bosh-softlayer-cpi,maximilien/bosh-softlayer-cpi,mattcui/bosh-softlayer-cpi-release,mattcui/bosh-softlayer-cpi-release,mattcui/bosh-softlayer-cpi-release