consider adding yedis proxy binding flags, etc

[Aaron Gershman]

note, from an example tserver, looks like its filled in

--cql_proxy_bind_address=q-m97997n3s0.q-g96704.bosh:9042
--cql_proxy_webserver_port=12000
--enable_direct_local_tablet_server_call=true
--inbound_rpc_memory_limit=0
--pgsql_proxy_bind_address=
--redis_proxy_bind_address=q-m97997n3s0.q-g96704.bosh:6379