don't use IPV6 on OSX; remove snappy from common
don't use IPV6 on OSX; remove snappy from common

starschema/virtdb-logger,starschema/virtdb-logger,virtdb/virtdb-logger,starschema/virtdb-logger,starschema/virtdb-logger,virtdb/virtdb-logger,virtdb/virtdb-logger,virtdb/virtdb-logger