gather Redis's sub connections to one connection

This is a proxy of Redis for SUBSCRIBE.

In typical situation of using Pub/Sub of Redis, you want to subscribe many channels on a single process.

But that makes you to create many clients resulting EMFILE error.

This module proxies many SUBSCRIBE clients to a single Redis connection.

    var proxy = require("redis-sub-proxy"),
        connection, sub1, sub2;
    connection = proxy.createConnection(6379, 'localhost'); // extention of redis.RedisClient 
    sub1 = connection.createClient();
    sub1.on("message", function(chmsg){ console.log("sub1: ", ch, msg) })
    sub2 = connection.createClient();
    sub2.on("message", function(chmsg){ console.log("sub2: ", ch, msg) })