[titan-gremlin] Automatically use 'itzg/cassandra' image's publish-as address
[titan-gremlin] Automatically use 'itzg/cassandra' image's publish-as address

ajthemacboy/dockerfiles,jbeda/itzg-dockerfiles,zerocoolys/dockerfiles-1,jbeda/itzg-dockerfiles,sekka1/dockerfiles,zerocoolys/dockerfiles-1,sekka1/dockerfiles,jbeda/itzg-dockerfiles,zerocoolys/dockerfiles-1,itzg/dockerfiles,sekka1/dockerfiles