Some more progress.

I still need to work on the Streaming, but I've figured out how
to do a bit of introspection which will be necessary when streaming an array.
Started working on the client classes, did ClientObserver and SessionObserver
stuff using flash's event notification system.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3846 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/io/ObjectOutputStream.as

@@ -33,6 +33,12 @@ public class ObjectOutputStream
             // create a class mapping if we've not got one
             if (cmap === undefined) {
                 var streamer :Streamer = Streamer.getStreamer(cname);
+                if (streamer === undefined) {
+                    // TODO
+                    trace("OMG, cannot stream ", cname);
+                    return;
+                }
+
                 cmap = new ClassMapping(_nextCode++, cname, streamer);
                 _classMap[cname] = cmap;