Bugs fixed:

*  authentication retry while server is loading db (danmaz74) [GH-101]
*  command arguments processing issue with arrays

New features:

*  Auto update of new commands from redis.io (Dave Hoover)
*  Performance improvements and backpressure controls.
*  Commands now return the true/false value from the underlying socket write(s).
*  Implement command_queue high water and low water for more better control of queueing.

See `examples/backpressure_drain.js` for more information.

examples/backpressure_drain.js

@@ -0,0 +1,33 @@
+var redis = require("../index"),
+    client = redis.createClient(null, null, {
+        command_queue_high_water: 5,
+        command_queue_low_water: 1
+    }),
+    remaining_ops = 10000, paused = false;
+
+function op() {
+    if (remaining_ops <= 0) {
+        console.error("Finished.");
+        process.exit(0);
+    }
+
+    remaining_ops--;
+    if (client.hset("test hash", "val " + remaining_ops, remaining_ops) === false) {
+        console.log("Pausing at " + remaining_ops);
+        paused = true;
+    } else {
+        process.nextTick(op);
+    }
+}
+
+client.on("drain", function () {
+    if (paused) {
+        console.log("Resuming at " + remaining_ops);
+        paused = false;
+        process.nextTick(op);
+    } else {
+        console.log("Got drain while not paused at " + remaining_ops);
+    }
+});
+
+op();