always update devel version and update stable version and revision when successful
always update devel version and update stable version and revision when successful

chfast/ethereum-buildbot,ethereum/ethereum-buildbot,vaporry/ethereum-buildbot,vaporry/ethereum-buildbot,chfast/ethereum-buildbot,ethereum/ethereum-buildbot,chfast/ethereum-buildbot,vaporry/ethereum-buildbot,ethereum/ethereum-buildbot