Update Ubuntu (Azure) Docker to `17.09.0`
Update Ubuntu (Azure) Docker to `17.09.0`

Package has been renamed from `docker-engine` to `docker-ce`.

mesosphere-mergebot/mergebot-test-dcos,dcos/dcos,dcos/dcos,BenWhitehead/dcos,surdy/dcos,kensipe/dcos,dcos/dcos,branden/dcos,surdy/dcos,surdy/dcos,amitaekbote/dcos,BenWhitehead/dcos,mesosphere-mergebot/dcos,mellenburg/dcos,GoelDeepak/dcos,amitaekbote/dcos,BenWhitehead/dcos,branden/dcos,mellenburg/dcos,surdy/dcos,dcos/dcos,branden/dcos,branden/dcos,dcos/dcos,GoelDeepak/dcos,mesosphere-mergebot/dcos,amitaekbote/dcos,BenWhitehead/dcos,amitaekbote/dcos,mellenburg/dcos,GoelDeepak/dcos,mellenburg/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/mergebot-test-dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos,kensipe/dcos,mesosphere-mergebot/mergebot-test-dcos,GoelDeepak/dcos,kensipe/dcos