Revamped chat handling a bit:

- the ChatProvider is now a proper singleton rather than providing static
methods for everything (it is accessed through CrowdServer.chatprov)
- it can now be extended to create a custom UserMessage for tells (which can
contain avatar information on systems that want to show an avatar on the
receipt of a tell)
- the ChatProvider API was tidied up a bit as some methods had been addded over
time that were not sufficiently general purpose so their callers will be
changed to use the general purpose APIs.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4251 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/crowd/peer/server/CrowdPeerDispatcher.java

@@ -23,6 +23,7 @@ package com.threerings.crowd.peer.server;
 
 import com.threerings.crowd.chat.client.ChatService;
 import com.threerings.crowd.chat.data.ChatMarshaller;
+import com.threerings.crowd.chat.data.UserMessage;
 import com.threerings.crowd.peer.client.CrowdPeerService;
 import com.threerings.crowd.peer.data.CrowdPeerMarshaller;
 import com.threerings.presents.client.Client;
@@ -61,7 +62,7 @@ public class CrowdPeerDispatcher extends InvocationDispatcher
         case CrowdPeerMarshaller.DELIVER_TELL:
             ((CrowdPeerProvider)provider).deliverTell(
                 source,
-                (Name)args[0], (Name)args[1], (String)args[2], (ChatService.TellListener)args[3]
+                (UserMessage)args[0], (Name)args[1], (ChatService.TellListener)args[2]
             );
             return;