Lowering the first retry_delay and begin from that value

Earlier the first value was never used, as it was first multiplied by 1.7

index.js

@@ -123,7 +123,7 @@ RedisClient.prototype.install_stream_listeners = function() {
 RedisClient.prototype.initialize_retry_vars = function () {
     this.retry_timer = null;
     this.retry_totaltime = 0;
-    this.retry_delay = 150;
+    this.retry_delay = 200;
     this.retry_backoff = 1.7;
     this.attempts = 1;
 };