Revert "Mitigate missing docker 1.12 binary download. (#3758)" as the cli is downloadbale again. (#3761)
Revert "Mitigate missing docker 1.12 binary download. (#3758)" as the cli is downloadbale again. (#3761)

This reverts commit 008996d099a730a2179ead97504ab631d30f1a80.
rabbah/openwhisk,sven-lange-last/openwhisk,jasonpet/openwhisk,jeremiaswerner/openwhisk,csantanapr/incubator-openwhisk,starpit/openwhisk,jeremiaswerner/openwhisk,csantanapr/incubator-openwhisk,dubeejw/openwhisk,RSulzmann/openwhisk,csantanapr/incubator-openwhisk,sven-lange-last/openwhisk,sven-lange-last/openwhisk,style95/openwhisk,akrabat/openwhisk,openwhisk/openwhisk,jeremiaswerner/openwhisk,jasonpet/openwhisk,markusthoemmes/openwhisk,csantanapr/incubator-openwhisk,style95/openwhisk,csantanapr/incubator-openwhisk,rabbah/openwhisk,markusthoemmes/openwhisk,rabbah/openwhisk,jasonpet/openwhisk,cbickel/openwhisk,starpit/openwhisk,csantanapr/incubator-openwhisk,akrabat/openwhisk,akrabat/openwhisk,sven-lange-last/openwhisk,sven-lange-last/openwhisk,akrabat/openwhisk,rabbah/openwhisk,rabbah/openwhisk,starpit/openwhisk,rabbah/openwhisk,style95/openwhisk,jeremiaswerner/openwhisk,cbickel/openwhisk,dubeejw/openwhisk,cbickel/openwhisk,houshengbo/openwhisk,jasonpet/openwhisk,RSulzmann/openwhisk,jasonpet/openwhisk,markusthoemmes/openwhisk,style95/openwhisk,RSulzmann/openwhisk,cbickel/openwhisk,openwhisk/openwhisk,jeremiaswerner/openwhisk,jeremiaswerner/openwhisk,houshengbo/openwhisk,openwhisk/openwhisk,style95/openwhisk,houshengbo/openwhisk,sven-lange-last/openwhisk,csantanapr/incubator-openwhisk,openwhisk/openwhisk,cbickel/openwhisk,RSulzmann/openwhisk,akrabat/openwhisk,houshengbo/openwhisk,houshengbo/openwhisk,houshengbo/openwhisk,dubeejw/openwhisk,starpit/openwhisk,markusthoemmes/openwhisk,markusthoemmes/openwhisk,dubeejw/openwhisk,markusthoemmes/openwhisk,jasonpet/openwhisk,rabbah/openwhisk,markusthoemmes/openwhisk,style95/openwhisk,RSulzmann/openwhisk,dubeejw/openwhisk,openwhisk/openwhisk,akrabat/openwhisk,starpit/openwhisk,starpit/openwhisk,dubeejw/openwhisk,jasonpet/openwhisk,cbickel/openwhisk,markusthoemmes/openwhisk,style95/openwhisk,houshengbo/openwhisk,jeremiaswerner/openwhisk,openwhisk/openwhisk,RSulzmann/openwhisk,cbickel/openwhisk,akrabat/openwhisk,RSulzmann/openwhisk,sven-lange-last/openwhisk