* Update LibOMV to f8f8e616b37a7ea22b7922b2331999bc06725bf9

* Add zero length blocks to the new packet blocks to remain compatible with older viewers and avoid a NullRef when _packets_.cs calls the Length parameter..    which adds up the Length property all of the blocks.

OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs

@@ -790,6 +790,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             handshake.RegionInfo3.ColoName = Utils.EmptyBytes;
             handshake.RegionInfo3.ProductName = Util.StringToBytes256(regionInfo.RegionType);
             handshake.RegionInfo3.ProductSKU = Utils.EmptyBytes;
+            handshake.RegionInfo4 = new RegionHandshakePacket.RegionInfo4Block[0];
             
             OutPacket(handshake, ThrottleOutPacketType.Task);
         }
@@ -3571,6 +3572,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             avp.Sender.IsTrial = false;
             avp.Sender.ID = agentID;
+            avp.AppearanceData = new AvatarAppearancePacket.AppearanceDataBlock[0];
             //m_log.DebugFormat("[CLIENT]: Sending appearance for {0} to {1}", agentID.ToString(), AgentId.ToString());
             OutPacket(avp, ThrottleOutPacketType.Task);
         }
@@ -4192,7 +4194,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             pack.Stat = stats.StatsBlock;
 
             pack.Header.Reliable = false;
-
+            pack.RegionInfo = new SimStatsPacket.RegionInfoBlock[0];
             OutPacket(pack, ThrottleOutPacketType.Task);
         }