More documentation update

Author: shovon

lib/Connection.js

@@ -18,6 +18,10 @@ function Connection(packetSender) {
 
 util.inherits(Connection, EventEmitter);
 
+/**
+ * Sends the given buffer to the end host.
+ * @param {Buffer} data The buffer to send to the end host.
+ */
 Connection.prototype.send = function (data) {
   this._sender.send(data);
 };