Created ServerCommunicator which does all I/O using the ConnectionManager's

polled socket system. This much more cleanly and efficiently integrates peer
(and other server to server) connections into the normal server I/O framework
and should also eliminate for good the annoying server hangs that result when
our old blocking client I/O threads got their pants wedged.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5510 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/net/Message.java

@@ -28,6 +28,9 @@ import com.threerings.io.SimpleStreamableObject;
  */
 public abstract class Message extends SimpleStreamableObject
 {
+    /** A timestamp indicating when this message was received from the network. */
+    public transient long received;
+
     /**
      * Sets the message transport parameters.  For messages received over the network, these
      * describe the mode of transport over which the message was received.  When sending messages,