update to latest curator (#3065)
update to latest curator (#3065)

* update to latest curator

* use zookeeper 3.4.x with curator 4.0
per docs at http://curator.apache.org/zk-compatibility.html

dubeejw/openwhisk,dubeejw/openwhisk,csantanapr/incubator-openwhisk,cbickel/openwhisk,sven-lange-last/openwhisk,csantanapr/incubator-openwhisk,jeremiaswerner/openwhisk,markusthoemmes/openwhisk,sven-lange-last/openwhisk,jasonpet/openwhisk,starpit/openwhisk,RSulzmann/openwhisk,markusthoemmes/openwhisk,dubeejw/openwhisk,openwhisk/openwhisk,houshengbo/openwhisk,style95/openwhisk,csantanapr/incubator-openwhisk,cbickel/openwhisk,houshengbo/openwhisk,markusthoemmes/openwhisk,akrabat/openwhisk,markusthoemmes/openwhisk,houshengbo/openwhisk,RSulzmann/openwhisk,jasonpet/openwhisk,markusthoemmes/openwhisk,style95/openwhisk,starpit/openwhisk,rabbah/openwhisk,RSulzmann/openwhisk,jeremiaswerner/openwhisk,cbickel/openwhisk,jasonpet/openwhisk,openwhisk/openwhisk,dubeejw/openwhisk,rabbah/openwhisk,RSulzmann/openwhisk,openwhisk/openwhisk,jeremiaswerner/openwhisk,openwhisk/openwhisk,sven-lange-last/openwhisk,style95/openwhisk,jasonpet/openwhisk,cbickel/openwhisk,jeremiaswerner/openwhisk,sven-lange-last/openwhisk,style95/openwhisk,style95/openwhisk,jasonpet/openwhisk,sven-lange-last/openwhisk,rabbah/openwhisk,style95/openwhisk,houshengbo/openwhisk,markusthoemmes/openwhisk,akrabat/openwhisk,starpit/openwhisk,jasonpet/openwhisk,markusthoemmes/openwhisk,houshengbo/openwhisk,rabbah/openwhisk,rabbah/openwhisk,cbickel/openwhisk,RSulzmann/openwhisk,starpit/openwhisk,openwhisk/openwhisk,RSulzmann/openwhisk,csantanapr/incubator-openwhisk,sven-lange-last/openwhisk,cbickel/openwhisk,jeremiaswerner/openwhisk,markusthoemmes/openwhisk,jasonpet/openwhisk,akrabat/openwhisk,houshengbo/openwhisk,csantanapr/incubator-openwhisk,akrabat/openwhisk,akrabat/openwhisk,jeremiaswerner/openwhisk,rabbah/openwhisk,openwhisk/openwhisk,style95/openwhisk,dubeejw/openwhisk,csantanapr/incubator-openwhisk,sven-lange-last/openwhisk,RSulzmann/openwhisk,cbickel/openwhisk,starpit/openwhisk,starpit/openwhisk,csantanapr/incubator-openwhisk,dubeejw/openwhisk,jeremiaswerner/openwhisk,akrabat/openwhisk,akrabat/openwhisk,houshengbo/openwhisk,rabbah/openwhisk