28 files changed, 1674 insertions, 511 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
index 66edfed..b7400ea 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
@@ -28,8 +28,11 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Text;
 using log4net;
 using OpenMetaverse;
+using OpenMetaverse.StructuredData;
+
 using OpenSim.Framework;
 
 using Animation = OpenSim.Framework.Animation;
@@ -60,6 +63,12 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             ResetDefaultAnimation();
         }
 
+        public AnimationSet(OSDArray pArray)
+        {
+            ResetDefaultAnimation();
+            FromOSDArray(pArray);
+        }
+
         public bool HasAnimation(UUID animID)
         {
             if (m_defaultAnimation.AnimID == animID)
@@ -218,5 +227,110 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             foreach (OpenSim.Framework.Animation anim in theArray)
                 m_animations.Add(anim);
         }
+
+        // Create representation of this AnimationSet as an OSDArray.
+        // First two entries in the array are the default and implicitDefault animations
+        //    followed by the other animations.
+        public OSDArray ToOSDArray()
+        {
+            OSDArray ret = new OSDArray();
+            ret.Add(DefaultAnimation.PackUpdateMessage());
+            ret.Add(ImplicitDefaultAnimation.PackUpdateMessage());
+
+            foreach (OpenSim.Framework.Animation anim in m_animations)
+                ret.Add(anim.PackUpdateMessage());
+
+            return ret;
+        }
+
+        public void FromOSDArray(OSDArray pArray)
+        {
+            this.Clear();
+
+            if (pArray.Count >= 1)
+            {
+                m_defaultAnimation = new OpenSim.Framework.Animation((OSDMap)pArray[0]);
+            }
+            if (pArray.Count >= 2)
+            {
+                m_implicitDefaultAnimation = new OpenSim.Framework.Animation((OSDMap)pArray[1]);
+            }
+            for (int ii = 2; ii < pArray.Count; ii++)
+            {
+                m_animations.Add(new OpenSim.Framework.Animation((OSDMap)pArray[ii]));
+            }
+        }
+
+        // Compare two AnimationSets and return 'true' if the default animations are the same
+        //     and all of the animations in the list are equal.
+        public override bool Equals(object obj)
+        {
+            AnimationSet other = obj as AnimationSet;
+            if (other != null)
+            {
+                if (this.DefaultAnimation.Equals(other.DefaultAnimation)
+                    && this.ImplicitDefaultAnimation.Equals(other.ImplicitDefaultAnimation))
+                {
+                    // The defaults are the same. Is the list of animations the same?
+                    OpenSim.Framework.Animation[] thisAnims = this.ToArray();
+                    OpenSim.Framework.Animation[] otherAnims = other.ToArray();
+                    if (thisAnims.Length == 0 && otherAnims.Length == 0)
+                        return true;    // the common case
+                    if (thisAnims.Length == otherAnims.Length)
+                    {
+                        // Do this the hard way but since the list is usually short this won't take long.
+                        foreach (OpenSim.Framework.Animation thisAnim in thisAnims)
+                        {
+                            bool found = false;
+                            foreach (OpenSim.Framework.Animation otherAnim in otherAnims)
+                            {
+                                if (thisAnim.Equals(otherAnim))
+                                {
+                                    found = true;
+                                    break;
+                                }
+                            }
+                            if (!found)
+                            {
+                                // If anything is not in the other list, these are not equal
+                                return false;
+                            }
+                        }
+                        // Found everything in the other list. Since lists are equal length, they must be equal.
+                        return true;
+                    }
+                }
+                return false;
+            }
+            // Don't know what was passed, but the base system will figure it out for me.
+            return base.Equals(obj);
+        }
+
+        public override string ToString()
+        {
+            StringBuilder buff = new StringBuilder();
+            buff.Append("dflt=");
+            buff.Append(DefaultAnimation.ToString());
+            buff.Append(",iDflt=");
+            if (DefaultAnimation.Equals(ImplicitDefaultAnimation))
+                buff.Append("same");
+            else
+                buff.Append(ImplicitDefaultAnimation.ToString());
+            if (m_animations.Count > 0)
+            {
+                buff.Append(",anims=");
+                bool firstTime = true;
+                foreach (OpenSim.Framework.Animation anim in m_animations)
+                {
+                    if (!firstTime)
+                        buff.Append(",");
+                    buff.Append("<");
+                    buff.Append(anim.ToString());
+                    buff.Append(">");
+                    firstTime = false;
+                }
+            }
+            return buff.ToString();
+        }
     }
 }
diff --git a/OpenSim/Region/Framework/Scenes/Animation/DefaultAvatarAnimations.cs b/OpenSim/Region/Framework/Scenes/Animation/DefaultAvatarAnimations.cs
index c2b0468..b79dd8f 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/DefaultAvatarAnimations.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/DefaultAvatarAnimations.cs
@@ -104,5 +104,31 @@ namespace OpenSim.Region.Framework.Scenes.Animation
 
             return UUID.Zero;
         }
+
+        /// <summary>
+        /// Get the name of the animation given a UUID. If there is no matching animation
+        ///    return the UUID as a string.
+        /// </summary>
+        public static string GetDefaultAnimationName(UUID uuid)
+        {
+            string ret = "unknown";
+            if (AnimsUUID.ContainsValue(uuid))
+            {
+                foreach (KeyValuePair<string, UUID> kvp in AnimsUUID)
+                {
+                    if (kvp.Value == uuid)
+                    {
+                        ret = kvp.Key;
+                        break;
+                    }
+                }
+            }
+            else
+            {
+                ret = uuid.ToString();
+            }
+
+            return ret;
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs b/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
index 65c279e..5529a25 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs
@@ -93,7 +93,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
                     GetAnimName(animID), animID, m_scenePresence.Name);
 
             if (m_animations.Add(animID, m_scenePresence.ControllingClient.NextAnimationSequenceNumber, objectID))
+            {
                 SendAnimPack();
+                m_scenePresence.TriggerScenePresenceUpdated();
+            }
         }
 
         // Called from scripts
@@ -132,7 +135,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
                     GetAnimName(animID), animID, m_scenePresence.Name);
 
             if (m_animations.Remove(animID, allowNoDefault))
+            {
                 SendAnimPack();
+                m_scenePresence.TriggerScenePresenceUpdated();
+            }
         }
 
         public void avnChangeAnim(UUID animID, bool addRemove, bool sendPack)
@@ -180,8 +186,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
         /// The movement animation is reserved for "main" animations
         /// that are mutually exclusive, e.g. flying and sitting.
         /// </summary>
-        public void TrySetMovementAnimation(string anim)
+        /// <returns>'true' if the animation was updated</returns>
+        public bool TrySetMovementAnimation(string anim)
         {
+            bool ret = false;
             if (!m_scenePresence.IsChildAgent)
             {
 //                m_log.DebugFormat(
@@ -198,6 +206,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
                     // 16384 is CHANGED_ANIMATION
                     m_scenePresence.SendScriptEventToAttachments("changed", new Object[] { (int)Changed.ANIMATION});
                     SendAnimPack();
+                    ret = true;
                 }
             }
             else
@@ -206,6 +215,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
                     "[SCENE PRESENCE ANIMATOR]: Tried to set movement animation {0} on child presence {1}",
                     anim, m_scenePresence.Name);
             }
+            return ret;
         }
 
         /// <summary>
@@ -439,8 +449,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
         /// <summary>
         /// Update the movement animation of this avatar according to its current state
         /// </summary>
-        public void UpdateMovementAnimations()
+        /// <returns>'true' if the animation was changed</returns>
+        public bool UpdateMovementAnimations()
         {
+            bool ret = false;
             lock (m_animations)
             {
                 string newMovementAnimation = DetermineMovementAnimation();
@@ -454,9 +466,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
 
                     // Only set it if it's actually changed, give a script
                     // a chance to stop a default animation
-                    TrySetMovementAnimation(CurrentMovementAnimation);
+                    ret = TrySetMovementAnimation(CurrentMovementAnimation);
                 }
             }
+            return ret;
         }
 
         public UUID[] GetAnimationArray()
diff --git a/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs b/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
index f555b49..11a0146 100644
--- a/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
+++ b/OpenSim/Region/Framework/Scenes/AsyncSceneObjectGroupDeleter.cs
@@ -104,14 +104,8 @@ namespace OpenSim.Region.Framework.Scenes
             // better than losing the object for now.
             if (permissionToDelete)
             {
-                List<uint> killIDs = new List<uint>();
-
                 foreach (SceneObjectGroup g in objectGroups)
-                {   killIDs.Add(g.LocalId);
-                    g.DeleteGroupFromScene(true);
-                }
-
-                m_scene.SendKillObject(killIDs);
+                    g.DeleteGroupFromScene(false);
             }
         }
         
@@ -160,7 +154,7 @@ namespace OpenSim.Region.Framework.Scenes
                             if (x.permissionToDelete)
                             {
                                 foreach (SceneObjectGroup g in x.objectGroups)
-                                    m_scene.DeleteSceneObject(g, false);
+                                    m_scene.DeleteSceneObject(g, true);
                             }
                         }
                         catch (Exception e)
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index 4733547..6e8eb91 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -743,7 +743,7 @@ namespace OpenSim.Region.Framework.Scenes
         public event OnIncomingSceneObjectDelegate OnIncomingSceneObject;
         public delegate void OnIncomingSceneObjectDelegate(SceneObjectGroup so);
 
-        public delegate void NewInventoryItemUploadComplete(UUID avatarID, UUID assetID, string name, int userlevel);
+        public delegate void NewInventoryItemUploadComplete(UUID avatarID, AssetType type, UUID assetID, string name, int userlevel);
 
         public event NewInventoryItemUploadComplete OnNewInventoryItemUploadComplete;
 
@@ -974,6 +974,8 @@ namespace OpenSim.Region.Framework.Scenes
         public delegate void RegionStarted(Scene scene);
         public event RegionStarted OnRegionStarted;
 
+        public delegate void RegionHeartbeatStart(Scene scene);
+        public event RegionHeartbeatStart OnRegionHeartbeatStart;
         public delegate void RegionHeartbeatEnd(Scene scene);
         public event RegionHeartbeatEnd OnRegionHeartbeatEnd;
 
@@ -1024,6 +1026,16 @@ namespace OpenSim.Region.Framework.Scenes
         /// </remarks>
         public event TeleportFail OnTeleportFail;
 
+//        public delegate void GatherUuids(SceneObjectPart sop, IDictionary<UUID, AssetType> assetUuids);
+//
+//        /// <summary>
+//        /// Triggered when UUIDs referenced by a scene object are being gathered for archiving, hg transfer, etc.
+//        /// </summary>
+//        /// <remarks>
+//        /// The listener should add references to the IDictionary<UUID, AssetType> as appropriate.
+//        /// </remarks>
+//        public event GatherUuids OnGatherUuids;
+
         public class MoneyTransferArgs : EventArgs
         {
             public UUID sender;
@@ -2160,7 +2172,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void TriggerOnNewInventoryItemUploadComplete(UUID agentID, UUID AssetID, String AssetName, int userlevel)
+        public void TriggerOnNewInventoryItemUploadComplete(UUID agentID, AssetType type, UUID AssetID, String AssetName, int userlevel)
         {
             NewInventoryItemUploadComplete handlerNewInventoryItemUpdateComplete = OnNewInventoryItemUploadComplete;
             if (handlerNewInventoryItemUpdateComplete != null)
@@ -2169,7 +2181,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     try
                     {
-                        d(agentID, AssetID, AssetName, userlevel);
+                        d(agentID, type, AssetID, AssetName, userlevel);
                     }
                     catch (Exception e)
                     {
@@ -3096,6 +3108,27 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public void TriggerRegionHeartbeatStart(Scene scene)
+        {
+            RegionHeartbeatStart handler = OnRegionHeartbeatStart;
+
+            if (handler != null)
+            {
+                foreach (RegionHeartbeatStart d in handler.GetInvocationList())
+                {
+                    try
+                    {
+                        d(scene);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat("[EVENT MANAGER]: Delegate for OnRegionHeartbeatStart failed - continuing {0} - {1}",
+                            e.Message, e.StackTrace);
+                    }
+                }
+            }
+        }
+
         public void TriggerRegionHeartbeatEnd(Scene scene)
         {
             RegionHeartbeatEnd handler = OnRegionHeartbeatEnd;
@@ -3251,5 +3284,26 @@ namespace OpenSim.Region.Framework.Scenes
                 handler(scenePresence);
             }
         }
+
+//        public void TriggerGatherUuids(SceneObjectPart sop, IDictionary<UUID, AssetType> assetUuids)
+//        {
+//            GatherUuids handler = OnGatherUuids;
+//
+//            if (handler != null)
+//            {
+//                foreach (GatherUuids d in handler.GetInvocationList())
+//                {
+//                    try
+//                    {
+//                        d(sop, assetUuids);
+//                    }
+//                    catch (Exception e)
+//                    {
+//                        m_log.ErrorFormat("[EVENT MANAGER]: Delegate for TriggerUuidGather failed - continuing {0} - {1}",
+//                            e.Message, e.StackTrace);
+//                    }
+//                }
+//            }
+//        }
     }
 }
diff --git a/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs b/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
index 276b61f..c0057ee 100644
--- a/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
+++ b/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
@@ -1,6 +1,29 @@
-// Proprietary code of Avination Virtual Limited
-// (c) 2012 Melanie Thielker
-//
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
 
 using System;
 using System.Timers;
@@ -32,7 +55,6 @@ namespace OpenSim.Region.Framework.Scenes
         private object m_lockObject = new object();
         private object m_timerLock = new object();
         private const double m_tickDuration = 50.0;
-        private Scene m_scene;
 
         public double TickDuration
         {
@@ -46,8 +68,6 @@ namespace OpenSim.Region.Framework.Scenes
             m_timer.AutoReset = true;
             m_timer.Elapsed += OnTimer;
 
-            m_scene = scene;
-
             m_timer.Start();
         }
 
@@ -71,13 +91,13 @@ namespace OpenSim.Region.Framework.Scenes
                     {
                         m.OnTimer(TickDuration);
                     }
-                    catch (Exception inner)
+                    catch (Exception)
                     {
                         // Don't stop processing
                     }
                 }
             }
-            catch (Exception e)
+            catch (Exception)
             {
                 // Keep running no matter what
             }
@@ -134,7 +154,7 @@ namespace OpenSim.Region.Framework.Scenes
     [Serializable]
     public class KeyframeMotion
     {
-        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         public enum PlayMode : int
         {
diff --git a/OpenSim/Region/Framework/Scenes/RegionStatsHandler.cs b/OpenSim/Region/Framework/Scenes/RegionStatsHandler.cs
index c11174d..f208afb 100644
--- a/OpenSim/Region/Framework/Scenes/RegionStatsHandler.cs
+++ b/OpenSim/Region/Framework/Scenes/RegionStatsHandler.cs
@@ -46,47 +46,33 @@ using OpenSim.Region.Framework.Scenes;
 
 namespace OpenSim.Region.Framework.Scenes
 {
-    public class RegionStatsHandler : IStreamedRequestHandler
+    public class RegionStatsHandler : BaseStreamHandler
     {
         //private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-        private string osRXStatsURI = String.Empty;
         private string osXStatsURI = String.Empty;
         //private string osSecret = String.Empty;
         private OpenSim.Framework.RegionInfo regionInfo;
         public string localZone = TimeZone.CurrentTimeZone.StandardName;
         public TimeSpan utcOffset = TimeZone.CurrentTimeZone.GetUtcOffset(DateTime.Now);
 
-        public string Name { get { return "RegionStats"; } }
-        public string Description { get { return "Region Statistics"; } }
-
-        public RegionStatsHandler(RegionInfo region_info)
+        public RegionStatsHandler(RegionInfo region_info) 
+            : base("GET", "/" + Util.SHA1Hash(region_info.regionSecret), "RegionStats", "Region Statistics")
         {
             regionInfo = region_info;
-            osRXStatsURI = Util.SHA1Hash(regionInfo.regionSecret);
             osXStatsURI = Util.SHA1Hash(regionInfo.osSecret);
         }
                     
-        public byte[] Handle(string path, Stream request, IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
+        protected override byte[] ProcessRequest(
+            string path, Stream request, IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
         {
             return Util.UTF8.GetBytes(Report());
         }
 
-        public string ContentType
+        public override string ContentType
         {
             get { return "text/plain"; }
         }
-
-        public string HttpMethod
-        {
-            get { return "GET"; }
-        }
-
-        public string Path
-        {
-            // This is for the region and is the regionSecret hashed
-            get { return "/" + osRXStatsURI; }
-        }
         
         private string Report()
         {
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index d2e41f8..4337b5a 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -139,7 +139,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     userlevel = 1;
                 }
-                EventManager.TriggerOnNewInventoryItemUploadComplete(item.Owner, item.AssetID, item.Name, userlevel);
+                EventManager.TriggerOnNewInventoryItemUploadComplete(item.Owner, (AssetType)item.AssetType, item.AssetID, item.Name, userlevel);
 
                 return true;
             }
@@ -178,7 +178,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     userlevel = 1;
                 }
-                EventManager.TriggerOnNewInventoryItemUploadComplete(item.Owner, item.AssetID, item.Name, userlevel);
+                EventManager.TriggerOnNewInventoryItemUploadComplete(item.Owner, (AssetType)item.AssetType, item.AssetID, item.Name, userlevel);
 
                 if (originalFolder != UUID.Zero)
                 {
@@ -411,19 +411,21 @@ namespace OpenSim.Region.Framework.Scenes
 //                        itemUpd.NextPermissions, itemUpd.GroupPermissions, itemUpd.EveryOnePermissions, item.Flags,
 //                        item.NextPermissions, item.GroupPermissions, item.EveryOnePermissions, item.CurrentPermissions);
 
+                bool sendUpdate = false;
+
                 if (itemUpd.NextPermissions != 0) // Use this to determine validity. Can never be 0 if valid
                 {
                     // Create a set of base permissions that will not include export if the user
                     // is not allowed to change the export flag.
                     bool denyExportChange = false;
 
-                    m_log.InfoFormat("[XXX]: B: {0} O: {1} E: {2}", itemUpd.BasePermissions, itemUpd.CurrentPermissions, itemUpd.EveryOnePermissions);
+//                    m_log.DebugFormat("[XXX]: B: {0} O: {1} E: {2}", itemUpd.BasePermissions, itemUpd.CurrentPermissions, itemUpd.EveryOnePermissions);
 
                     // If the user is not the creator or doesn't have "E" in both "B" and "O", deny setting export
                     if ((item.BasePermissions & (uint)(PermissionMask.All | PermissionMask.Export)) != (uint)(PermissionMask.All | PermissionMask.Export) || (item.CurrentPermissions & (uint)PermissionMask.Export) == 0 || item.CreatorIdAsUuid != item.Owner)
                         denyExportChange = true;
 
-                    m_log.InfoFormat("[XXX]: Deny Export Update {0}", denyExportChange);
+//                    m_log.DebugFormat("[XXX]: Deny Export Update {0}", denyExportChange);
 
                     // If it is already set, force it set and also force full perm
                     // else prevent setting it. It can and should never be set unless
@@ -447,7 +449,7 @@ namespace OpenSim.Region.Framework.Scenes
                         // If the new state is exportable, force full perm
                         if ((itemUpd.EveryOnePermissions & (uint)PermissionMask.Export) != 0)
                         {
-                            m_log.InfoFormat("[XXX]: Force full perm");
+//                            m_log.DebugFormat("[XXX]: Force full perm");
                             itemUpd.NextPermissions = (uint)(PermissionMask.All);
                         }
                     }
@@ -484,8 +486,13 @@ namespace OpenSim.Region.Framework.Scenes
                     item.SalePrice = itemUpd.SalePrice;
                     item.SaleType = itemUpd.SaleType;
 
+                    if (item.InvType == (int)InventoryType.Wearable && (item.Flags & 0xf) == 0 && (itemUpd.Flags & 0xf) != 0)
+                    {
+                        item.Flags = (uint)(item.Flags & 0xfffffff0) | (itemUpd.Flags & 0xf);
+                        sendUpdate = true;
+                    }
+
                     InventoryService.UpdateItem(item);
-                    remoteClient.SendBulkUpdateInventory(item);
                 }
 
                 if (UUID.Zero != transactionID)
@@ -495,6 +502,14 @@ namespace OpenSim.Region.Framework.Scenes
                         AgentTransactionsModule.HandleItemUpdateFromTransaction(remoteClient, transactionID, item);
                     }
                 }
+                else
+                {
+                    // This MAY be problematic, if it is, another solution
+                    // needs to be found. If inventory item flags are updated
+                    // the viewer's notion of the item needs to be refreshed.
+                    if (sendUpdate)
+                        remoteClient.SendBulkUpdateInventory(item);
+                }
             }
             else
             {
@@ -548,6 +563,9 @@ namespace OpenSim.Region.Framework.Scenes
         {
             //Console.WriteLine("Scene.Inventory.cs: GiveInventoryItem");
 
+            if (!Permissions.CanTransferUserInventory(itemId, senderId, recipient))
+                return null;
+
             InventoryItemBase item = new InventoryItemBase(itemId, senderId);
             item = InventoryService.GetItem(item);
 
@@ -2124,7 +2142,10 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     // If we don't have permission, stop right here
                     if (!permissionToTakeCopy)
+                    {
+                        remoteClient.SendAlertMessage("You don't have permission to take the object");
                         return;
+                    }
 
                     permissionToTake = true;
                     // Don't delete
diff --git a/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs b/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
index ce6415a..421cb08 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
@@ -416,6 +416,7 @@ namespace OpenSim.Region.Framework.Scenes
         void ProcessViewerEffect(IClientAPI remoteClient, List<ViewerEffectEventHandlerArg> args)
         {
             // TODO: don't create new blocks if recycling an old packet
+            bool discardableEffects = true;
             ViewerEffectPacket.EffectBlock[] effectBlockArray = new ViewerEffectPacket.EffectBlock[args.Count];
             for (int i = 0; i < args.Count; i++)
             {
@@ -427,17 +428,34 @@ namespace OpenSim.Region.Framework.Scenes
                 effect.Type = args[i].Type;
                 effect.TypeData = args[i].TypeData;
                 effectBlockArray[i] = effect;
+
+                if ((EffectType)effect.Type != EffectType.LookAt && (EffectType)effect.Type != EffectType.Beam)
+                    discardableEffects = false;
+
+                //m_log.DebugFormat("[YYY]: VE {0} {1} {2}", effect.AgentID, effect.Duration, (EffectType)effect.Type);
             }
 
-            ForEachClient(
-                delegate(IClientAPI client)
+            ForEachScenePresence(sp =>
                 {
-                    if (client.AgentId != remoteClient.AgentId)
-                        client.SendViewerEffect(effectBlockArray);
-                }
-            );
+                    if (sp.ControllingClient.AgentId != remoteClient.AgentId)
+                    {
+                        if (!discardableEffects ||
+                            (discardableEffects && ShouldSendDiscardableEffect(remoteClient, sp)))
+                        {
+                            //m_log.DebugFormat("[YYY]: Sending to {0}", sp.UUID);
+                            sp.ControllingClient.SendViewerEffect(effectBlockArray);
+                        }
+                        //else
+                        //    m_log.DebugFormat("[YYY]: Not sending to {0}", sp.UUID);
+                    }
+                });
         }
         
+        private bool ShouldSendDiscardableEffect(IClientAPI thisClient, ScenePresence other)
+        {
+            return Vector3.Distance(other.CameraPosition, thisClient.SceneAgent.AbsolutePosition) < 10;
+        }
+
         private class DescendentsRequestData
         {
             public IClientAPI RemoteClient;
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index b189599..d6d2df4 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -151,7 +151,7 @@ namespace OpenSim.Region.Framework.Scenes
         public SynchronizeSceneHandler SynchronizeScene;
 
         /// <summary>
-        /// Used to prevent simultaneous calls to RemoveClient() for the same agent from interfering with each other.
+        /// Used to prevent simultaneous calls to code that adds and removes agents.
         /// </summary>
         private object m_removeClientLock = new object();
 
@@ -230,6 +230,8 @@ namespace OpenSim.Region.Framework.Scenes
         public bool m_seeIntoBannedRegion = false;
         public int MaxUndoCount = 5;
 
+        public bool SeeIntoRegion { get; set; }
+
         // Using this for RegionReady module to prevent LoginsDisabled from changing under our feet;
         public bool LoginLock = false;
 
@@ -396,10 +398,12 @@ namespace OpenSim.Region.Framework.Scenes
                 if (value)
                 {
                     if (!m_active)
-                        Start();
+                        Start(false);
                 }
                 else
                 {
+                    // This appears assymetric with Start() above but is not - setting m_active = false stops the loops
+                    // XXX: Possibly this should be in an explicit Stop() method for symmetry.
                     m_active = false;
                 }
             }
@@ -859,9 +863,11 @@ namespace OpenSim.Region.Framework.Scenes
                 //Animation states
                 m_useFlySlow = startupConfig.GetBoolean("enableflyslow", false);
 
+
+                MaxUndoCount = startupConfig.GetInt("MaxPrimUndos", 20);
+
                 PhysicalPrims = startupConfig.GetBoolean("physical_prim", true);
                 CollidablePrims = startupConfig.GetBoolean("collidable_prim", true);
-
                 m_minNonphys = startupConfig.GetFloat("NonPhysicalPrimMin", m_minNonphys);
                 if (RegionInfo.NonphysPrimMin > 0)
                 {
@@ -1332,7 +1338,7 @@ namespace OpenSim.Region.Framework.Scenes
             Thread.Sleep(500);
 
             // Stop all client threads.
-            ForEachScenePresence(delegate(ScenePresence avatar) { avatar.ControllingClient.Close(); });
+            ForEachScenePresence(delegate(ScenePresence avatar) { IncomingCloseAgent(avatar.UUID, false); });
 
             m_log.Debug("[SCENE]: TriggerSceneShuttingDown");
             EventManager.TriggerSceneShuttingDown(this);
@@ -1361,10 +1367,18 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public override void Start()
+        {
+            Start(true);
+        }
+
         /// <summary>
         /// Start the scene
         /// </summary>
-        public void Start()
+        /// <param name='startScripts'>
+        /// Start the scripts within the scene.
+        /// </param> 
+        public void Start(bool startScripts)
         {
             m_active = true;
 
@@ -1401,6 +1415,8 @@ namespace OpenSim.Region.Framework.Scenes
             m_heartbeatThread
                 = Watchdog.StartThread(
                     Heartbeat, string.Format("Heartbeat ({0})", RegionInfo.RegionName), ThreadPriority.Normal, false, false);
+
+            StartScripts();
         }
 
         /// <summary>
@@ -1557,6 +1573,8 @@ namespace OpenSim.Region.Framework.Scenes
 
                 try
                 {
+                    EventManager.TriggerRegionHeartbeatStart(this);
+
                     // Apply taints in terrain module to terrain in physics scene
                     if (Frame % m_update_terrain == 0)
                     {
@@ -2939,6 +2957,7 @@ namespace OpenSim.Region.Framework.Scenes
         {
             ScenePresence sp;
             bool vialogin;
+            bool reallyNew = true;
 
             // Validation occurs in LLUDPServer
             //
@@ -2997,16 +3016,21 @@ namespace OpenSim.Region.Framework.Scenes
                     m_log.WarnFormat(
                         "[SCENE]: Already found {0} scene presence for {1} in {2} when asked to add new scene presence",
                         sp.IsChildAgent ? "child" : "root", sp.Name, RegionInfo.RegionName);
+                    reallyNew = false;
                 }
     
                 // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
                 // client is for a root or child agent.
                 client.SceneAgent = sp;
 
-                // Cache the user's name
+                // This is currently also being done earlier in NewUserConnection for real users to see if this 
+                // resolves problems where HG agents are occasionally seen by others as "Unknown user" in chat and other
+                // places.  However, we still need to do it here for NPCs.
                 CacheUserName(sp, aCircuit);
     
-                EventManager.TriggerOnNewClient(client);
+                if (reallyNew)
+                    EventManager.TriggerOnNewClient(client);
+    
                 if (vialogin)
                     EventManager.TriggerOnClientLogin(client);
             }
@@ -3027,7 +3051,7 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 string first = aCircuit.firstname, last = aCircuit.lastname;
 
-                if (sp.PresenceType == PresenceType.Npc)
+                if (sp != null && sp.PresenceType == PresenceType.Npc)
                 {
                     UserManagementModule.AddUser(aCircuit.AgentID, first, last);
                 }
@@ -3105,7 +3129,8 @@ namespace OpenSim.Region.Framework.Scenes
                         if (sp != null)
                         {
                             PresenceService.LogoutAgent(sp.ControllingClient.SessionId);
-                            sp.ControllingClient.Close();
+
+                            IncomingCloseAgent(sp.UUID, false);
                         }
 
                         // BANG! SLASH!
@@ -3244,8 +3269,6 @@ namespace OpenSim.Region.Framework.Scenes
         {
             //client.OnNameFromUUIDRequest += HandleUUIDNameRequest;
             client.OnMoneyTransferRequest += ProcessMoneyTransferRequest;
-            client.OnSetStartLocationRequest += SetHomeRezPoint;
-            client.OnRegionHandleRequest += RegionHandleRequest;
         }
         
         public virtual void SubscribeToClientNetworkEvents(IClientAPI client)
@@ -3371,8 +3394,6 @@ namespace OpenSim.Region.Framework.Scenes
         {
             //client.OnNameFromUUIDRequest -= HandleUUIDNameRequest;
             client.OnMoneyTransferRequest -= ProcessMoneyTransferRequest;
-            client.OnSetStartLocationRequest -= SetHomeRezPoint;
-            client.OnRegionHandleRequest -= RegionHandleRequest;
         }
 
         public virtual void UnSubscribeToClientNetworkEvents(IClientAPI client)
@@ -3498,33 +3519,6 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
-        /// Sets the Home Point.   The LoginService uses this to know where to put a user when they log-in
-        /// </summary>
-        /// <param name="remoteClient"></param>
-        /// <param name="regionHandle"></param>
-        /// <param name="position"></param>
-        /// <param name="lookAt"></param>
-        /// <param name="flags"></param>
-        public virtual void SetHomeRezPoint(IClientAPI remoteClient, ulong regionHandle, Vector3 position, Vector3 lookAt, uint flags)
-        {
-            //Add half the avatar's height so that the user doesn't fall through prims
-            ScenePresence presence;
-            if (TryGetScenePresence(remoteClient.AgentId, out presence))
-            {
-                if (presence.Appearance != null)
-                {
-                    position.Z = position.Z + (presence.Appearance.AvatarHeight / 2);
-                }
-            }
-
-            if (GridUserService != null && GridUserService.SetHome(remoteClient.AgentId.ToString(), RegionInfo.RegionID, position, lookAt))
-                // FUBAR ALERT: this needs to be "Home position set." so the viewer saves a home-screenshot.
-                m_dialogModule.SendAlertToUser(remoteClient, "Home position set.");
-            else
-                m_dialogModule.SendAlertToUser(remoteClient, "Set Home request Failed.");
-        }
-
-        /// <summary>
         /// Get the avatar apperance for the given client.
         /// </summary>
         /// <param name="client"></param>
@@ -3548,63 +3542,69 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        /// <summary>
+        /// Remove the given client from the scene. 
+        /// </summary>
+        /// <remarks>
+        /// Only clientstack code should call this directly.  All other code should call IncomingCloseAgent() instead
+        /// to properly operate the state machine and avoid race conditions with other close requests (such as directly
+        /// from viewers).
+        /// </remarks>
+        /// <param name='agentID'>ID of agent to close</param>
+        /// <param name='closeChildAgents'>
+        /// Close the neighbour child agents associated with this client.
+        /// </param>
         public override void RemoveClient(UUID agentID, bool closeChildAgents)
         {
-//            CheckHeartbeat();
-            bool isChildAgent = false;
-            AgentCircuitData acd;
+            AgentCircuitData acd = m_authenticateHandler.GetAgentCircuitData(agentID);
 
-            lock (m_removeClientLock)
+            // Shouldn't be necessary since RemoveClient() is currently only called by IClientAPI.Close() which 
+            // in turn is only called by Scene.IncomingCloseAgent() which checks whether the presence exists or not
+            // However, will keep for now just in case.
+            if (acd == null)
             {
-                acd = m_authenticateHandler.GetAgentCircuitData(agentID);
+                m_log.ErrorFormat(
+                    "[SCENE]: No agent circuit found for {0} in {1}, aborting Scene.RemoveClient", agentID, Name);
 
-                if (acd == null)
-                {
-                    m_log.ErrorFormat("[SCENE]: No agent circuit found for {0}, aborting Scene.RemoveClient", agentID);
-                    return;
-                }
-                else
-                {
-                    // We remove the acd up here to avoid later race conditions if two RemoveClient() calls occurred
-                    // simultaneously.
-                    // We also need to remove by agent ID since NPCs will have no circuit code.
-                    m_authenticateHandler.RemoveCircuit(agentID);
-                }
+                return;
+            }
+            else
+            {
+                m_authenticateHandler.RemoveCircuit(agentID);
             }
 
+            // TODO: Can we now remove this lock?
             lock (acd)
-            {
+            {    
+                bool isChildAgent = false;
+
                 ScenePresence avatar = GetScenePresence(agentID);
-    
+ 
+                // Shouldn't be necessary since RemoveClient() is currently only called by IClientAPI.Close() which 
+                // in turn is only called by Scene.IncomingCloseAgent() which checks whether the presence exists or not
+                // However, will keep for now just in case.
                 if (avatar == null)
                 {
-                    m_log.WarnFormat(
+                    m_log.ErrorFormat(
                         "[SCENE]: Called RemoveClient() with agent ID {0} but no such presence is in the scene.", agentID);
     
                     return;
                 }
-    
+
                 try
                 {
                     isChildAgent = avatar.IsChildAgent;
 
                     m_log.DebugFormat(
                         "[SCENE]: Removing {0} agent {1} {2} from {3}",
-                        (isChildAgent ? "child" : "root"), avatar.Name, agentID, RegionInfo.RegionName);
+                        isChildAgent ? "child" : "root", avatar.Name, agentID, Name);
     
                     // Don't do this to root agents, it's not nice for the viewer
                     if (closeChildAgents && isChildAgent)
                     {
                         // Tell a single agent to disconnect from the region.
-                        IEventQueue eq = RequestModuleInterface<IEventQueue>();
-                        if (eq != null)
-                        {
-                            eq.DisableSimulator(RegionInfo.RegionHandle, avatar.UUID);
-                        }
-                        else
-                        {
-                            avatar.ControllingClient.SendShutdownConnectionNotice();
-                        }
+                        // Let's do this via UDP
+                        avatar.ControllingClient.SendShutdownConnectionNotice();
                     }
     
                     // Only applies to root agents.
@@ -3620,16 +3620,13 @@ namespace OpenSim.Region.Framework.Scenes
                     if (closeChildAgents && CapsModule != null)
                         CapsModule.RemoveCaps(agentID, avatar.ControllingClient.CircuitCode);
     
-//                    // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
-//                    // this method is doing is HORRIBLE!!!
-                    // Commented pending deletion since this method no longer appears to do anything at all
-//                    avatar.Scene.NeedSceneCacheClear(avatar.UUID);
-    
                     if (closeChildAgents && !isChildAgent)
                     {
                         List<ulong> regions = avatar.KnownRegionHandles;
                         regions.Remove(RegionInfo.RegionHandle);
-                        m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
+
+                        // This ends up being done asynchronously so that a logout isn't held up where there are many present but unresponsive neighbours.
+                        m_sceneGridService.SendCloseChildAgentConnections(agentID, acd.SessionID.ToString(), regions);
                     }
     
                     m_eventManager.TriggerClientClosed(agentID, this);
@@ -3646,7 +3643,7 @@ namespace OpenSim.Region.Framework.Scenes
                             delegate(IClientAPI client)
                             {
                                 //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
-                                try { client.SendKillObject(avatar.RegionHandle, new List<uint> { avatar.LocalId }); }
+                                try { client.SendKillObject(new List<uint> { avatar.LocalId }); }
                                 catch (NullReferenceException) { }
                             });
                     }
@@ -3727,7 +3724,8 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 deleteIDs.Add(localID);
             }
-            ForEachClient(delegate(IClientAPI client) { client.SendKillObject(m_regionHandle, deleteIDs); });
+
+            ForEachClient(c => c.SendKillObject(deleteIDs));
         }
 
         #endregion
@@ -3763,13 +3761,13 @@ namespace OpenSim.Region.Framework.Scenes
         /// is activated later when the viewer sends the initial UseCircuitCodePacket UDP packet (in the case of
         /// the LLUDP stack).
         /// </remarks>
-        /// <param name="agent">CircuitData of the agent who is connecting</param>
+        /// <param name="acd">CircuitData of the agent who is connecting</param>
         /// <param name="reason">Outputs the reason for the false response on this string</param>
         /// <param name="requirePresenceLookup">True for normal presence. False for NPC
         /// or other applications where a full grid/Hypergrid presence may not be required.</param>
         /// <returns>True if the region accepts this agent.  False if it does not.  False will 
         /// also return a reason.</returns>
-        public bool NewUserConnection(AgentCircuitData agent, uint teleportFlags, out string reason, bool requirePresenceLookup)
+        public bool NewUserConnection(AgentCircuitData acd, uint teleportFlags, out string reason, bool requirePresenceLookup)
         {
             bool vialogin = ((teleportFlags & (uint)TPFlags.ViaLogin) != 0 ||
                 (teleportFlags & (uint)TPFlags.ViaHGLogin) != 0);
@@ -3789,15 +3787,15 @@ namespace OpenSim.Region.Framework.Scenes
             m_log.DebugFormat(
                 "[SCENE]: Region {0} told of incoming {1} agent {2} {3} {4} (circuit code {5}, IP {6}, viewer {7}, teleportflags ({8}), position {9})",
                 RegionInfo.RegionName,
-                (agent.child ? "child" : "root"),
-                agent.firstname,
-                agent.lastname,
-                agent.AgentID,
-                agent.circuitcode,
-                agent.IPAddress,
-                agent.Viewer,
+                (acd.child ? "child" : "root"),
+                acd.firstname,
+                acd.lastname,
+                acd.AgentID,
+                acd.circuitcode,
+                acd.IPAddress,
+                acd.Viewer,
                 ((TPFlags)teleportFlags).ToString(),
-                agent.startpos
+                acd.startpos
             );
 
             if (!LoginsEnabled)
@@ -3815,7 +3813,7 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 foreach (string viewer in m_AllowedViewers)
                 {
-                    if (viewer == agent.Viewer.Substring(0, viewer.Length).Trim().ToLower())
+                    if (viewer == acd.Viewer.Substring(0, viewer.Length).Trim().ToLower())
                     {
                         ViewerDenied = false;
                         break;
@@ -3832,7 +3830,7 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 foreach (string viewer in m_BannedViewers)
                 {
-                    if (viewer == agent.Viewer.Substring(0, viewer.Length).Trim().ToLower())
+                    if (viewer == acd.Viewer.Substring(0, viewer.Length).Trim().ToLower())
                     {
                         ViewerDenied = true;
                         break;
@@ -3844,54 +3842,129 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 m_log.DebugFormat(
                     "[SCENE]: Access denied for {0} {1} using {2}",
-                    agent.firstname, agent.lastname, agent.Viewer);
+                    acd.firstname, acd.lastname, acd.Viewer);
                 reason = "Access denied, your viewer is banned by the region owner";
                 return false;
-            }           
+            }
 
-            ScenePresence sp = GetScenePresence(agent.AgentID);
+            ILandObject land;
+            ScenePresence sp;
 
-            // If we have noo presence here or if that presence is a zombie root
-            // presence that will be kicled, we need a new CAPS object.
-            if (sp == null || (sp != null && !sp.IsChildAgent))
+            lock (m_removeClientLock)
             {
-                if (CapsModule != null)
+                sp = GetScenePresence(acd.AgentID);
+
+                // We need to ensure that we are not already removing the scene presence before we ask it not to be 
+                // closed.
+                if (sp != null && sp.IsChildAgent 
+                    && (sp.LifecycleState == ScenePresenceState.Running 
+                        || sp.LifecycleState == ScenePresenceState.PreRemove))
                 {
-                    lock (agent)
+                    m_log.DebugFormat(
+                        "[SCENE]: Reusing existing child scene presence for {0}, state {1} in {2}", 
+                        sp.Name, sp.LifecycleState, Name);
+
+                    // In the case where, for example, an A B C D region layout, an avatar may
+                    // teleport from A -> D, but then -> C before A has asked B to close its old child agent.  When C
+                    // renews the lease on the child agent at B, we must make sure that the close from A does not succeed.
+                    //
+                    // XXX: In the end, this should not be necessary if child agents are closed without delay on 
+                    // teleport, since realistically, the close request should always be processed before any other
+                    // region tried to re-establish a child agent.  This is much simpler since the logic below is 
+                    // vulnerable to an issue when a viewer quits a region without sending a proper logout but then
+                    // re-establishes the connection on a relogin.  This could wrongly set the DoNotCloseAfterTeleport
+                    // flag when no teleport had taken place (and hence no close was going to come).
+//                    if (!acd.ChildrenCapSeeds.ContainsKey(RegionInfo.RegionHandle))
+//                    {
+//                        m_log.DebugFormat(
+//                            "[SCENE]: Setting DoNotCloseAfterTeleport for child scene presence {0} in {1} because source will attempt close.", 
+//                            sp.Name, Name);
+//
+//                        sp.DoNotCloseAfterTeleport = true;
+//                    }
+//                    else if (EntityTransferModule.IsInTransit(sp.UUID))
+
+                    sp.LifecycleState = ScenePresenceState.Running;
+
+                    if (EntityTransferModule.IsInTransit(sp.UUID))
                     {
-                        CapsModule.SetAgentCapsSeeds(agent);
-                        CapsModule.CreateCaps(agent.AgentID, agent.circuitcode);
+                        sp.DoNotCloseAfterTeleport = true;
+
+                        m_log.DebugFormat(
+                            "[SCENE]: Set DoNotCloseAfterTeleport for child scene presence {0} in {1} because this region will attempt end-of-teleport close from a previous close.", 
+                            sp.Name, Name);
                     }
                 }
             }
 
+            // Need to poll here in case we are currently deleting an sp.  Letting threads run over each other will
+            // allow unpredictable things to happen.
             if (sp != null)
             {
-                if (!sp.IsChildAgent)
+                const int polls = 10;
+                const int pollInterval = 1000;
+                int pollsLeft = polls;
+
+                while (sp.LifecycleState == ScenePresenceState.Removing && pollsLeft-- > 0)
+                    Thread.Sleep(pollInterval);
+
+                if (sp.LifecycleState == ScenePresenceState.Removing)
                 {
-                    // We have a zombie from a crashed session. 
-                    // Or the same user is trying to be root twice here, won't work.
-                    // Kill it.
                     m_log.WarnFormat(
-                        "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
-                        sp.Name, sp.UUID, RegionInfo.RegionName);
+                        "[SCENE]: Agent {0} in {1} was still being removed after {2}s.  Aborting NewUserConnection.", 
+                        sp.Name, Name, polls * pollInterval / 1000);
 
-                    sp.ControllingClient.Close(true, true);
-                    sp = null;
+                    return false;
+                }
+                else if (polls != pollsLeft)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: NewUserConnection for agent {0} in {1} had to wait {2}s for in-progress removal to complete on an old presence.",
+                        sp.Name, Name, polls * pollInterval / 1000);
                 }
             }
 
-            lock (agent)
+            // TODO: can we remove this lock?
+            lock (acd)
             {
-                //On login test land permisions
+                if (sp != null && !sp.IsChildAgent)
+                {
+                    // We have a root agent. Is it in transit?
+                    if (!EntityTransferModule.IsInTransit(sp.UUID))
+                    {
+                        // We have a zombie from a crashed session. 
+                        // Or the same user is trying to be root twice here, won't work.
+                        // Kill it.
+                        m_log.WarnFormat(
+                            "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
+                            sp.Name, sp.UUID, RegionInfo.RegionName);
+
+                        if (sp.ControllingClient != null)
+                            IncomingCloseAgent(sp.UUID, true);
+
+                        sp = null;
+                    }
+                    //else
+                    //    m_log.WarnFormat("[SCENE]: Existing root scene presence for {0} {1} in {2}, but agent is in trasit", sp.Name, sp.UUID, RegionInfo.RegionName);
+                }
+
+                // Optimistic: add or update the circuit data with the new agent circuit data and teleport flags.
+                // We need the circuit data here for some of the subsequent checks. (groups, for example)
+                // If the checks fail, we remove the circuit.
+                acd.teleportFlags = teleportFlags;
+                m_authenticateHandler.AddNewCircuit(acd.circuitcode, acd);
+
+                land = LandChannel.GetLandObject(acd.startpos.X, acd.startpos.Y);
+    
+                // On login test land permisions
                 if (vialogin)
                 {
                     IUserAccountCacheModule cache = RequestModuleInterface<IUserAccountCacheModule>();
                     if (cache != null)
-                        cache.Remove(agent.firstname + " " + agent.lastname);
-                    if (!TestLandRestrictions(agent.AgentID, out reason, ref agent.startpos.X, ref agent.startpos.Y))
+                        cache.Remove(acd.firstname + " " + acd.lastname);
+                    if (land != null && !TestLandRestrictions(acd.AgentID, out reason, ref acd.startpos.X, ref acd.startpos.Y))
                     {
-                        m_log.DebugFormat("[CONNECTION BEGIN]: Denying access to {0} due to no land access", agent.AgentID.ToString());
+                        m_authenticateHandler.RemoveCircuit(acd.circuitcode);
                         return false;
                     }
                 }
@@ -3902,40 +3975,49 @@ namespace OpenSim.Region.Framework.Scenes
                     {
                         try
                         {
-                            if (!VerifyUserPresence(agent, out reason))
+                            if (!VerifyUserPresence(acd, out reason))
+                            {
+                                m_authenticateHandler.RemoveCircuit(acd.circuitcode);
                                 return false;
-                        } catch (Exception e)
+                            }
+                        }
+                        catch (Exception e)
                         {
                             m_log.ErrorFormat(
                                 "[SCENE]: Exception verifying presence {0}{1}", e.Message, e.StackTrace);
+
+                            m_authenticateHandler.RemoveCircuit(acd.circuitcode);
                             return false;
                         }
                     }
 
                     try
                     {
-                        // Always check estate if this is a login. Always
-                        // check if banned regions are to be blacked out.
-                        if (vialogin || (!m_seeIntoBannedRegion))
+                        if (!AuthorizeUser(acd, (vialogin ? false : SeeIntoRegion), out reason))
                         {
-                            if (!AuthorizeUser(agent, out reason))
-                            {
-                                return false;
-                            }
+                            m_authenticateHandler.RemoveCircuit(acd.circuitcode);
+                            return false;
                         }
                     }
                     catch (Exception e)
                     {
                         m_log.ErrorFormat(
                             "[SCENE]: Exception authorizing user {0}{1}", e.Message, e.StackTrace);
+
+                        m_authenticateHandler.RemoveCircuit(acd.circuitcode);
                         return false;
                     }
 
                     m_log.InfoFormat(
                         "[SCENE]: Region {0} authenticated and authorized incoming {1} agent {2} {3} {4} (circuit code {5})",
-                        RegionInfo.RegionName, (agent.child ? "child" : "root"), agent.firstname, agent.lastname,
-                        agent.AgentID, agent.circuitcode);
-
+                        Name, (acd.child ? "child" : "root"), acd.firstname, acd.lastname,
+                        acd.AgentID, acd.circuitcode);
+    
+                    if (CapsModule != null)
+                    {
+                        CapsModule.SetAgentCapsSeeds(acd);
+                        CapsModule.CreateCaps(acd.AgentID, acd.circuitcode);
+                    }
                 }
                 else
                 {
@@ -3943,43 +4025,60 @@ namespace OpenSim.Region.Framework.Scenes
                     // uses down the line.
                     sp.TeleportFlags = (TPFlags)teleportFlags;
 
+                    // We must carry out a further authorization check if there's an 
+                    // attempt to make a child agent into a root agent, since SeeIntoRegion may have allowed a child
+                    // agent to login to a region where a full avatar would not be allowed.
+                    //
+                    // We determine whether this is a CreateAgent for a future non-child agent by inspecting 
+                    // TeleportFlags, which will be default for a child connection.  This relies on input from the source
+                    // region.
+                    if (sp.TeleportFlags != TPFlags.Default)
+                    {
+                        if (!AuthorizeUser(acd, false, out reason))
+                            return false;
+                    }
+    
                     if (sp.IsChildAgent)
                     {
                         m_log.DebugFormat(
                             "[SCENE]: Adjusting known seeds for existing agent {0} in {1}",
-                            agent.AgentID, RegionInfo.RegionName);
-
+                            acd.AgentID, RegionInfo.RegionName);
+    
                         sp.AdjustKnownSeeds();
 
                         if (CapsModule != null)
-                            CapsModule.SetAgentCapsSeeds(agent);
+                        {
+                            CapsModule.SetAgentCapsSeeds(acd);
+                            CapsModule.CreateCaps(acd.AgentID, acd.circuitcode);
+                        }
                     }
                 }
-            }
 
-            // In all cases, add or update the circuit data with the new agent circuit data and teleport flags
-            agent.teleportFlags = teleportFlags;
-            m_authenticateHandler.AddNewCircuit(agent.circuitcode, agent);
+                // Try caching an incoming user name much earlier on to see if this helps with an issue
+                // where HG users are occasionally seen by others as "Unknown User" because their UUIDName
+                // request for the HG avatar appears to trigger before the user name is cached.
+                CacheUserName(null, acd);
+            }
 
             if (CapsModule != null)
             {
-                CapsModule.ActivateCaps(agent.circuitcode);
+                CapsModule.ActivateCaps(acd.circuitcode);
             }
 
             if (vialogin)
             {
 //                CleanDroppedAttachments();
 
-                if (TestBorderCross(agent.startpos, Cardinals.E))
+                if (TestBorderCross(acd.startpos, Cardinals.E))
                 {
-                    Border crossedBorder = GetCrossedBorder(agent.startpos, Cardinals.E);
-                    agent.startpos.X = crossedBorder.BorderLine.Z - 1;
+                    Border crossedBorder = GetCrossedBorder(acd.startpos, Cardinals.E);
+                    acd.startpos.X = crossedBorder.BorderLine.Z - 1;
                 }
 
-                if (TestBorderCross(agent.startpos, Cardinals.N))
+                if (TestBorderCross(acd.startpos, Cardinals.N))
                 {
-                    Border crossedBorder = GetCrossedBorder(agent.startpos, Cardinals.N);
-                    agent.startpos.Y = crossedBorder.BorderLine.Z - 1;
+                    Border crossedBorder = GetCrossedBorder(acd.startpos, Cardinals.N);
+                    acd.startpos.Y = crossedBorder.BorderLine.Z - 1;
                 }
 
                 //Mitigate http://opensimulator.org/mantis/view.php?id=3522
@@ -3989,39 +4088,39 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     lock (EastBorders)
                     {
-                        if (agent.startpos.X > EastBorders[0].BorderLine.Z)
+                        if (acd.startpos.X > EastBorders[0].BorderLine.Z)
                         {
                             m_log.Warn("FIX AGENT POSITION");
-                            agent.startpos.X = EastBorders[0].BorderLine.Z * 0.5f;
-                            if (agent.startpos.Z > 720)
-                                agent.startpos.Z = 720;
+                            acd.startpos.X = EastBorders[0].BorderLine.Z * 0.5f;
+                            if (acd.startpos.Z > 720)
+                                acd.startpos.Z = 720;
                         }
                     }
                     lock (NorthBorders)
                     {
-                        if (agent.startpos.Y > NorthBorders[0].BorderLine.Z)
+                        if (acd.startpos.Y > NorthBorders[0].BorderLine.Z)
                         {
                             m_log.Warn("FIX Agent POSITION");
-                            agent.startpos.Y = NorthBorders[0].BorderLine.Z * 0.5f;
-                            if (agent.startpos.Z > 720)
-                                agent.startpos.Z = 720;
+                            acd.startpos.Y = NorthBorders[0].BorderLine.Z * 0.5f;
+                            if (acd.startpos.Z > 720)
+                                acd.startpos.Z = 720;
                         }
                     }
                 } else
                 {
-                    if (agent.startpos.X > EastBorders[0].BorderLine.Z)
+                    if (acd.startpos.X > EastBorders[0].BorderLine.Z)
                     {
                         m_log.Warn("FIX AGENT POSITION");
-                        agent.startpos.X = EastBorders[0].BorderLine.Z * 0.5f;
-                        if (agent.startpos.Z > 720)
-                            agent.startpos.Z = 720;
+                        acd.startpos.X = EastBorders[0].BorderLine.Z * 0.5f;
+                        if (acd.startpos.Z > 720)
+                            acd.startpos.Z = 720;
                     }
-                    if (agent.startpos.Y > NorthBorders[0].BorderLine.Z)
+                    if (acd.startpos.Y > NorthBorders[0].BorderLine.Z)
                     {
                         m_log.Warn("FIX Agent POSITION");
-                        agent.startpos.Y = NorthBorders[0].BorderLine.Z * 0.5f;
-                        if (agent.startpos.Z > 720)
-                            agent.startpos.Z = 720;
+                        acd.startpos.Y = NorthBorders[0].BorderLine.Z * 0.5f;
+                        if (acd.startpos.Z > 720)
+                            acd.startpos.Z = 720;
                     }
                 }
 
@@ -4037,12 +4136,12 @@ namespace OpenSim.Region.Framework.Scenes
                     {
                         // We have multiple SpawnPoints, Route the agent to a random or sequential one
                         if (SpawnPointRouting == "random")
-                            agent.startpos = spawnpoints[Util.RandomClass.Next(spawnpoints.Count) - 1].GetLocation(
+                            acd.startpos = spawnpoints[Util.RandomClass.Next(spawnpoints.Count) - 1].GetLocation(
                                 telehub.AbsolutePosition,
                                 telehub.GroupRotation
                             );
                         else
-                            agent.startpos = spawnpoints[SpawnPoint()].GetLocation(
+                            acd.startpos = spawnpoints[SpawnPoint()].GetLocation(
                                 telehub.AbsolutePosition,
                                 telehub.GroupRotation
                             );
@@ -4050,7 +4149,7 @@ namespace OpenSim.Region.Framework.Scenes
                     else
                     {
                         // We have a single SpawnPoint and will route the agent to it
-                        agent.startpos = spawnpoints[0].GetLocation(telehub.AbsolutePosition, telehub.GroupRotation);
+                        acd.startpos = spawnpoints[0].GetLocation(telehub.AbsolutePosition, telehub.GroupRotation);
                     }
 
                     return true;
@@ -4063,7 +4162,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     if (land.LandData.LandingType == (byte)1 && land.LandData.UserLocation != Vector3.Zero)
                     {
-                        agent.startpos = land.LandData.UserLocation;
+                        acd.startpos = land.LandData.UserLocation;
                     }
                 }
                 */// This is now handled properly in ScenePresence.MakeRootAgent
@@ -4158,7 +4257,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="reason">outputs the reason to this string</param>
         /// <returns>True if the region accepts this agent.  False if it does not.  False will 
         /// also return a reason.</returns>
-        protected virtual bool AuthorizeUser(AgentCircuitData agent, out string reason)
+        protected virtual bool AuthorizeUser(AgentCircuitData agent, bool bypassAccessControl, out string reason)
         {
             reason = String.Empty;
 
@@ -4177,67 +4276,75 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
 
-            if (RegionInfo.EstateSettings != null)
+            // We only test the things below when we want to cut off
+            // child agents from being present in the scene for which their root
+            // agent isn't allowed. Otherwise, we allow child agents. The test for
+            // the root is done elsewhere (QueryAccess)
+            if (!bypassAccessControl)
             {
-                if (RegionInfo.EstateSettings.IsBanned(agent.AgentID, 0))
+                if (RegionInfo.EstateSettings != null)
                 {
-                    m_log.WarnFormat("[CONNECTION BEGIN]: Denied access to: {0} ({1} {2}) at {3} because the user is on the banlist",
-                                     agent.AgentID, agent.firstname, agent.lastname, RegionInfo.RegionName);
-                    reason = String.Format("Denied access to region {0}: You have been banned from that region.",
-                                           RegionInfo.RegionName);
-                    return false;
+                    int flags = GetUserFlags(agent.AgentID);
+                    if (RegionInfo.EstateSettings.IsBanned(agent.AgentID, flags))
+                    {
+                        m_log.WarnFormat("[CONNECTION BEGIN]: Denied access to: {0} ({1} {2}) at {3} because the user is on the banlist",
+                                         agent.AgentID, agent.firstname, agent.lastname, RegionInfo.RegionName);
+                        reason = String.Format("Denied access to region {0}: You have been banned from that region.",
+                                               RegionInfo.RegionName);
+                        return false;
+                    }
                 }
-            }
-            else
-            {
-                m_log.ErrorFormat("[CONNECTION BEGIN]: Estate Settings is null!");
-            }
-
-            List<UUID> agentGroups = new List<UUID>();
-
-            if (m_groupsModule != null)
-            {
-                GroupMembershipData[] GroupMembership = m_groupsModule.GetMembershipData(agent.AgentID);
-
-                if (GroupMembership != null)
+                else
                 {
-                    for (int i = 0; i < GroupMembership.Length; i++)
-                        agentGroups.Add(GroupMembership[i].GroupID);
+                    m_log.ErrorFormat("[CONNECTION BEGIN]: Estate Settings is null!");
                 }
-                else
+
+                List<UUID> agentGroups = new List<UUID>();
+
+                if (m_groupsModule != null)
                 {
-                    m_log.ErrorFormat("[CONNECTION BEGIN]: GroupMembership is null!");
+                    GroupMembershipData[] GroupMembership = m_groupsModule.GetMembershipData(agent.AgentID);
+
+                    if (GroupMembership != null)
+                    {
+                        for (int i = 0; i < GroupMembership.Length; i++)
+                            agentGroups.Add(GroupMembership[i].GroupID);
+                    }
+                    else
+                    {
+                        m_log.ErrorFormat("[CONNECTION BEGIN]: GroupMembership is null!");
+                    }
                 }
-            }
 
-            bool groupAccess = false;
-            UUID[] estateGroups = RegionInfo.EstateSettings.EstateGroups;
+                bool groupAccess = false;
+                UUID[] estateGroups = RegionInfo.EstateSettings.EstateGroups;
 
-            if (estateGroups != null)
-            {
-                foreach (UUID group in estateGroups)
+                if (estateGroups != null)
                 {
-                    if (agentGroups.Contains(group))
+                    foreach (UUID group in estateGroups)
                     {
-                        groupAccess = true;
-                        break;
+                        if (agentGroups.Contains(group))
+                        {
+                            groupAccess = true;
+                            break;
+                        }
                     }
                 }
-            }
-            else
-            {
-                m_log.ErrorFormat("[CONNECTION BEGIN]: EstateGroups is null!");
-            }
+                else
+                {
+                    m_log.ErrorFormat("[CONNECTION BEGIN]: EstateGroups is null!");
+                }
 
-            if (!RegionInfo.EstateSettings.PublicAccess &&
-                !RegionInfo.EstateSettings.HasAccess(agent.AgentID) &&
-                !groupAccess)
-            {
-                m_log.WarnFormat("[CONNECTION BEGIN]: Denied access to: {0} ({1} {2}) at {3} because the user does not have access to the estate",
-                                 agent.AgentID, agent.firstname, agent.lastname, RegionInfo.RegionName);
-                reason = String.Format("Denied access to private region {0}: You are not on the access list for that region.",
-                                       RegionInfo.RegionName);
-                return false;
+                if (!RegionInfo.EstateSettings.PublicAccess &&
+                    !RegionInfo.EstateSettings.HasAccess(agent.AgentID) &&
+                    !groupAccess)
+                {
+                    m_log.WarnFormat("[CONNECTION BEGIN]: Denied access to: {0} ({1} {2}) at {3} because the user does not have access to the estate",
+                                     agent.AgentID, agent.firstname, agent.lastname, RegionInfo.RegionName);
+                    reason = String.Format("Denied access to private region {0}: You are not on the access list for that region.",
+                                           RegionInfo.RegionName);
+                    return false;
+                }
             }
 
             // TODO: estate/region settings are not properly hooked up
@@ -4367,8 +4474,6 @@ namespace OpenSim.Region.Framework.Scenes
             m_log.DebugFormat(
                 "[SCENE]: Incoming child agent update for {0} in {1}", cAgentData.AgentID, RegionInfo.RegionName);
 
-            // XPTO: if this agent is not allowed here as root, always return false
-
             // We have to wait until the viewer contacts this region after receiving EAC.
             // That calls AddNewClient, which finally creates the ScenePresence
             int flags = GetUserFlags(cAgentData.AgentID);
@@ -4390,13 +4495,39 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             // We have to wait until the viewer contacts this region
-            // after receiving the EnableSimulator HTTP Event Queue message.  This triggers the viewer to send
+            // after receiving the EnableSimulator HTTP Event Queue message (for the v1 teleport protocol) 
+            // or TeleportFinish (for the v2 teleport protocol).  This triggers the viewer to send
             // a UseCircuitCode packet which in turn calls AddNewClient which finally creates the ScenePresence.
-            ScenePresence childAgentUpdate = WaitGetScenePresence(cAgentData.AgentID);
+            ScenePresence sp = WaitGetScenePresence(cAgentData.AgentID);
 
-            if (childAgentUpdate != null)
+            if (sp != null)
             {
-                childAgentUpdate.ChildAgentDataUpdate(cAgentData);
+                if (cAgentData.SessionID != sp.ControllingClient.SessionId)
+                {
+                    m_log.WarnFormat(
+                        "[SCENE]: Attempt to update agent {0} with invalid session id {1} (possibly from simulator in older version; tell them to update).", 
+                        sp.UUID, cAgentData.SessionID);
+
+                    Console.WriteLine(String.Format("[SCENE]: Attempt to update agent {0} ({1}) with invalid session id {2}", 
+                        sp.UUID, sp.ControllingClient.SessionId, cAgentData.SessionID));
+                }
+
+                sp.ChildAgentDataUpdate(cAgentData);
+
+                int ntimes = 20;
+                if (cAgentData.SenderWantsToWaitForRoot)
+                {
+                    while (sp.IsChildAgent && ntimes-- > 0)
+                        Thread.Sleep(1000);
+
+                    m_log.DebugFormat(
+                        "[SCENE]: Found presence {0} {1} {2} in {3} after {4} waits",
+                        sp.Name, sp.UUID, sp.IsChildAgent ? "child" : "root", Name, 20 - ntimes);
+
+                    if (sp.IsChildAgent)
+                        return false;
+                }
+
                 return true;
             }
 
@@ -4415,6 +4546,11 @@ namespace OpenSim.Region.Framework.Scenes
             ScenePresence childAgentUpdate = GetScenePresence(cAgentData.AgentID);
             if (childAgentUpdate != null)
             {
+//                if (childAgentUpdate.ControllingClient.SessionId != cAgentData.SessionID)
+//                    // Only warn for now
+//                    m_log.WarnFormat("[SCENE]: Attempt at updating position of agent {0} with invalid session id {1}. Neighbor running older version?", 
+//                        childAgentUpdate.UUID, cAgentData.SessionID);
+
                 // I can't imagine *yet* why we would get an update if the agent is a root agent..
                 // however to avoid a race condition crossing borders..
                 if (childAgentUpdate.IsChildAgent)
@@ -4451,10 +4587,6 @@ namespace OpenSim.Region.Framework.Scenes
                 m_log.WarnFormat(
                     "[SCENE PRESENCE]: Did not find presence with id {0} in {1} before timeout",
                     agentID, RegionInfo.RegionName);
-//            else
-//                m_log.DebugFormat(
-//                    "[SCENE PRESENCE]: Found presence {0} {1} {2} in {3} after {4} waits",
-//                    sp.Name, sp.UUID, sp.IsChildAgent ? "child" : "root", RegionInfo.RegionName, 10 - ntimes);
 
             return sp;
         }
@@ -4471,6 +4603,42 @@ namespace OpenSim.Region.Framework.Scenes
 
             return false;
         }
+        /// <summary>
+        /// Authenticated close (via network)
+        /// </summary>
+        /// <param name="agentID"></param>
+        /// <param name="force"></param>
+        /// <param name="auth_token"></param>
+        /// <returns></returns>
+        public bool IncomingCloseAgent(UUID agentID, bool force, string auth_token)
+        {
+            //m_log.DebugFormat("[SCENE]: Processing incoming close agent {0} in region {1} with auth_token {2}", agentID, RegionInfo.RegionName, auth_token);
+
+            // Check that the auth_token is valid
+            AgentCircuitData acd = AuthenticateHandler.GetAgentCircuitData(agentID);
+
+            if (acd == null)
+            {
+                m_log.DebugFormat(
+                    "[SCENE]: Request to close agent {0} but no such agent in scene {1}.  May have been closed previously.", 
+                    agentID, Name);
+
+                return false;
+            }
+
+            if (acd.SessionID.ToString() == auth_token)
+            {
+                return IncomingCloseAgent(agentID, force);
+            }
+            else
+            {
+                m_log.WarnFormat(
+                    "[SCENE]: Request to close agent {0} with invalid authorization token {1} in {2}", 
+                    agentID, auth_token, Name);
+            }
+
+            return false;
+        }
 
         public bool IncomingCloseAgent(UUID agentID)
         {
@@ -4483,6 +4651,50 @@ namespace OpenSim.Region.Framework.Scenes
         }
 
         /// <summary>
+        /// Tell a single agent to prepare to close.
+        /// </summary>
+        /// <remarks>
+        /// This should only be called if we may close the agent but there will be some delay in so doing.  Meant for
+        /// internal use - other callers should almost certainly called IncomingCloseAgent().
+        /// </remarks>
+        /// <param name="sp"></param>
+        /// <returns>true if pre-close state notification was successful.  false if the agent
+        /// was not in a state where it could transition to pre-close.</returns>
+        public bool IncomingPreCloseAgent(ScenePresence sp)
+        {
+            lock (m_removeClientLock)
+            {
+                // We need to avoid a race condition where in, for example, an A B C D region layout, an avatar may
+                // teleport from A -> D, but then -> C before A has asked B to close its old child agent.  We do not
+                // want to obey this close since C may have renewed the child agent lease on B.
+                if (sp.DoNotCloseAfterTeleport)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: Not pre-closing {0} agent {1} in {2} since another simulator has re-established the child connection",
+                        sp.IsChildAgent ? "child" : "root", sp.Name, Name);
+
+                    // Need to reset the flag so that a subsequent close after another teleport can succeed.
+                    sp.DoNotCloseAfterTeleport = false;
+
+                    return false;
+                }
+
+                if (sp.LifecycleState != ScenePresenceState.Running)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: Called IncomingPreCloseAgent() for {0} in {1} but presence is already in state {2}",
+                        sp.Name, Name, sp.LifecycleState);
+
+                    return false;
+                }
+
+                sp.LifecycleState = ScenePresenceState.PreRemove;
+
+                return true;
+            }
+        }
+
+        /// <summary>
         /// Tell a single agent to disconnect from the region.
         /// </summary>
         /// <param name="agentID"></param>
@@ -4492,16 +4704,55 @@ namespace OpenSim.Region.Framework.Scenes
         /// </param>
         public bool IncomingCloseAgent(UUID agentID, bool force)
         {
-            //m_log.DebugFormat("[SCENE]: Processing incoming close agent for {0}", agentID);
+            ScenePresence sp;
 
-            ScenePresence presence = m_sceneGraph.GetScenePresence(agentID);
-            if (presence != null)
+            lock (m_removeClientLock)
+            {
+                sp = GetScenePresence(agentID);
+    
+                if (sp == null)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: Called IncomingCloseAgent() with agent ID {0} but no such presence is in {1}", 
+                        agentID, Name);
+    
+                    return false;
+                }
+
+                if (sp.LifecycleState != ScenePresenceState.Running && sp.LifecycleState != ScenePresenceState.PreRemove)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: Called IncomingCloseAgent() for {0} in {1} but presence is already in state {2}",
+                        sp.Name, Name, sp.LifecycleState);
+
+                    return false;
+                }
+
+                // We need to avoid a race condition where in, for example, an A B C D region layout, an avatar may
+                // teleport from A -> D, but then -> C before A has asked B to close its old child agent.  We do not
+                // want to obey this close since C may have renewed the child agent lease on B.
+                if (sp.DoNotCloseAfterTeleport)
+                {
+                    m_log.DebugFormat(
+                        "[SCENE]: Not closing {0} agent {1} in {2} since another simulator has re-established the child connection",
+                        sp.IsChildAgent ? "child" : "root", sp.Name, Name);
+
+                    // Need to reset the flag so that a subsequent close after another teleport can succeed.
+                    sp.DoNotCloseAfterTeleport = false;
+
+                    return false;
+                }
+
+                sp.LifecycleState = ScenePresenceState.Removing;
+            }
+
+            if (sp != null)
             {
-                presence.ControllingClient.Close(force, force);
+                sp.ControllingClient.Close(force, force);
                 return true;
             }
 
-            // Agent not here
+            // Agent not here 
             return false;
         }
 
@@ -5091,21 +5342,6 @@ namespace OpenSim.Region.Framework.Scenes
 
         #endregion
 
-        public void RegionHandleRequest(IClientAPI client, UUID regionID)
-        {
-            ulong handle = 0;
-            if (regionID == RegionInfo.RegionID)
-                handle = RegionInfo.RegionHandle;
-            else
-            {
-                GridRegion r = GridService.GetRegionByUUID(UUID.Zero, regionID);
-                if (r != null)
-                    handle = r.RegionHandle;
-            }
-
-            if (handle != 0)
-                client.SendRegionHandle(regionID, handle);
-        }
 
 // Commented pending deletion since this method no longer appears to do anything at all
 //        public bool NeedSceneCacheClear(UUID agentID)
@@ -5657,12 +5893,12 @@ Environment.Exit(1);
            List<SceneObjectGroup> objects, 
            out float minX, out float maxX, out float minY, out float maxY, out float minZ, out float maxZ)
         {
-            minX = 256;
-            maxX = -256;
-            minY = 256;
-            maxY = -256;
-            minZ = 8192;
-            maxZ = -256;
+            minX = float.MaxValue;
+            maxX = float.MinValue;
+            minY = float.MaxValue;
+            maxY = float.MinValue;
+            minZ = float.MaxValue;
+            maxZ = float.MinValue;
 
             List<Vector3> offsets = new List<Vector3>();
 
@@ -5802,17 +6038,6 @@ Environment.Exit(1);
         {
             reason = "You are banned from the region";
 
-            if (EntityTransferModule.IsInTransit(agentID))
-            {
-                reason = "Agent is still in transit from this region";
-
-                m_log.WarnFormat(
-                    "[SCENE]: Denying agent {0} entry into {1} since region still has them registered as in transit",
-                    agentID, RegionInfo.RegionName);
-
-                return false;
-            }
-
             if (Permissions.IsGod(agentID))
             {
                 reason = String.Empty;
@@ -5862,9 +6087,9 @@ Environment.Exit(1);
 
             try
             {
-                if (!AuthorizeUser(aCircuit, out reason))
+                if (!AuthorizeUser(aCircuit, false, out reason))
                 {
-                    // m_log.DebugFormat("[SCENE]: Denying access for {0}", agentID);
+                    //m_log.DebugFormat("[SCENE]: Denying access for {0}", agentID);
                     return false;
                 }
             }
diff --git a/OpenSim/Region/Framework/Scenes/SceneBase.cs b/OpenSim/Region/Framework/Scenes/SceneBase.cs
index 74c9582..1dac676 100644
--- a/OpenSim/Region/Framework/Scenes/SceneBase.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneBase.cs
@@ -218,6 +218,19 @@ namespace OpenSim.Region.Framework.Scenes
         #region Add/Remove Agent/Avatar
 
         public abstract ISceneAgent AddNewClient(IClientAPI client, PresenceType type);
+
+        /// <summary>
+        /// Remove the given client from the scene. 
+        /// </summary>
+        /// <remarks>
+        /// Only clientstack code should call this directly.  All other code should call IncomingCloseAgent() instead
+        /// to properly operate the state machine and avoid race conditions with other close requests (such as directly
+        /// from viewers).
+        /// </remarks>
+        /// <param name='agentID'>ID of agent to close</param>
+        /// <param name='closeChildAgents'>
+        /// Close the neighbour child agents associated with this client.
+        /// </param>
         public abstract void RemoveClient(UUID agentID, bool closeChildAgents);
 
         public bool TryGetScenePresence(UUID agentID, out object scenePresence)
@@ -562,6 +575,10 @@ namespace OpenSim.Region.Framework.Scenes
             get { return false; }
         }
 
+        public virtual void Start()
+        {
+        }
+
         public void Restart()
         {
             // This has to be here to fire the event
diff --git a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
index 775a4c2..52f46f2 100644
--- a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
@@ -200,7 +200,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// This Closes child agents on neighboring regions
         /// Calls an asynchronous method to do so..  so it doesn't lag the sim.
         /// </summary>
-        protected void SendCloseChildAgentAsync(UUID agentID, ulong regionHandle)
+        protected void SendCloseChildAgent(UUID agentID, ulong regionHandle, string auth_token)
         {
             // let's do our best, but there's not much we can do if the neighbour doesn't accept.
 
@@ -209,23 +209,25 @@ namespace OpenSim.Region.Framework.Scenes
             Utils.LongToUInts(regionHandle, out x, out y);
 
             GridRegion destination = m_scene.GridService.GetRegionByPosition(m_regionInfo.ScopeID, (int)x, (int)y);
-            m_scene.SimulationService.CloseChildAgent(destination, agentID);
-        }
 
-        private void SendCloseChildAgentCompleted(IAsyncResult iar)
-        {
-            SendCloseChildAgentDelegate icon = (SendCloseChildAgentDelegate)iar.AsyncState;
-            icon.EndInvoke(iar);
+            m_log.DebugFormat(
+                "[SCENE COMMUNICATION SERVICE]: Sending close agent ID {0} to {1}", agentID, destination.RegionName);
+
+            m_scene.SimulationService.CloseAgent(destination, agentID, auth_token);
         }
 
-        public void SendCloseChildAgentConnections(UUID agentID, List<ulong> regionslst)
+        /// <summary>
+        /// Closes a child agents in a collection of regions. Does so asynchronously 
+        /// so that the caller doesn't wait.
+        /// </summary>
+        /// <param name="agentID"></param>
+        /// <param name="regionslst"></param>
+        public void SendCloseChildAgentConnections(UUID agentID, string auth_code, List<ulong> regionslst)
         {
             foreach (ulong handle in regionslst)
             {
-                SendCloseChildAgentDelegate d = SendCloseChildAgentAsync;
-                d.BeginInvoke(agentID, handle,
-                              SendCloseChildAgentCompleted,
-                              d);
+                ulong handleCopy = handle;
+                Util.FireAndForget((o) => { SendCloseChildAgent(agentID, handleCopy, auth_code); });
             }
         }
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index e599e90..b0f8991 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -631,40 +631,16 @@ namespace OpenSim.Region.Framework.Scenes
         protected internal ScenePresence CreateAndAddChildScenePresence(
             IClientAPI client, AvatarAppearance appearance, PresenceType type)
         {
-            ScenePresence newAvatar = null;
-
             // ScenePresence always defaults to child agent
-            newAvatar = new ScenePresence(client, m_parentScene, appearance, type);
-
-            AddScenePresence(newAvatar);
-
-            return newAvatar;
-        }
-
-        /// <summary>
-        /// Add a presence to the scene
-        /// </summary>
-        /// <param name="presence"></param>
-        protected internal void AddScenePresence(ScenePresence presence)
-        {
-            // Always a child when added to the scene
-            bool child = presence.IsChildAgent;
-
-            if (child)
-            {
-                m_numChildAgents++;
-            }
-            else
-            {
-                m_numRootAgents++;
-                presence.AddToPhysicalScene(false);
-            }
+            ScenePresence presence = new ScenePresence(client, m_parentScene, appearance, type);
 
             Entities[presence.UUID] = presence;
 
             m_scenePresencesLock.EnterWriteLock();
             try
             {
+                m_numChildAgents++;
+
                 Dictionary<UUID, ScenePresence> newmap = new Dictionary<UUID, ScenePresence>(m_scenePresenceMap);
                 List<ScenePresence> newlist = new List<ScenePresence>(m_scenePresenceArray);
 
@@ -675,7 +651,7 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 else
                 {
-                    // Remember the old presene reference from the dictionary
+                    // Remember the old presence reference from the dictionary
                     ScenePresence oldref = newmap[presence.UUID];
                     // Replace the presence reference in the dictionary with the new value
                     newmap[presence.UUID] = presence;
@@ -691,6 +667,8 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 m_scenePresencesLock.ExitWriteLock();
             }
+
+            return presence;
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Framework/Scenes/SceneManager.cs b/OpenSim/Region/Framework/Scenes/SceneManager.cs
index c70342f..c5c083a 100644
--- a/OpenSim/Region/Framework/Scenes/SceneManager.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneManager.cs
@@ -420,29 +420,6 @@ namespace OpenSim.Region.Framework.Scenes
             return false;
         }
 
-        /// <summary>
-        /// Set the debug packet level on each current scene.  This level governs which packets are printed out to the
-        /// console.
-        /// </summary>
-        /// <param name="newDebug"></param>
-        /// <param name="name">Name of avatar to debug</param>
-        public void SetDebugPacketLevelOnCurrentScene(int newDebug, string name)
-        {
-            ForEachSelectedScene(scene =>
-                scene.ForEachScenePresence(sp =>
-                {
-                    if (name == null || sp.Name == name)
-                    {
-                        m_log.DebugFormat(
-                            "Packet debug for {0} ({1}) set to {2}",
-                            sp.Name, sp.IsChildAgent ? "child" : "root", newDebug);
-
-                        sp.ControllingClient.DebugPacketLevel = newDebug;
-                    }
-                })
-            );
-        }
-
         public List<ScenePresence> GetCurrentSceneAvatars()
         {
             List<ScenePresence> avatars = new List<ScenePresence>();
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs
index f8624e7..8c50a81 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs
@@ -67,6 +67,12 @@ namespace OpenSim.Region.Framework.Scenes
         {
             int scriptsStarted = 0;
 
+            if (m_scene == null)
+            {
+                m_log.DebugFormat("[PRIM INVENTORY]: m_scene is null. Unable to create script instances");
+                return 0;
+            }
+
             // Don't start scripts if they're turned off in the region!
             if (!m_scene.RegionInfo.RegionSettings.DisableScripts)
             {
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 3e1dcaa..6deb870 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -1868,11 +1868,11 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Delete this group from its scene.
         /// </summary>
-        /// 
+        /// <remarks>
         /// This only handles the in-world consequences of deletion (e.g. any avatars sitting on it are forcibly stood
         /// up and all avatars receive notification of its removal.  Removal of the scene object from database backup
         /// must be handled by the caller.
-        /// 
+        /// </remarks>
         /// <param name="silent">If true then deletion is not broadcast to clients</param>
         public void DeleteGroupFromScene(bool silent)
         {
@@ -1886,10 +1886,10 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 SceneObjectPart part = parts[i];
 
-                Scene.ForEachRootScenePresence(delegate(ScenePresence avatar)
+                Scene.ForEachScenePresence(sp =>
                 {
-                    if (avatar.ParentID == LocalId)
-                        avatar.StandUp();
+                    if (!sp.IsChildAgent && sp.ParentID == LocalId)
+                        sp.StandUp();
 
                     if (!silent)
                     {
@@ -1897,9 +1897,9 @@ namespace OpenSim.Region.Framework.Scenes
                         if (part == m_rootPart)
                         {
                             if (!IsAttachment
-                                || AttachedAvatar == avatar.ControllingClient.AgentId
+                                || AttachedAvatar == sp.UUID
                                 || !HasPrivateAttachmentPoint)
-                                avatar.ControllingClient.SendKillObject(m_regionHandle, new List<uint> { part.LocalId });
+                                sp.ControllingClient.SendKillObject(new List<uint> { part.LocalId });
                         }
                     }
                 });
@@ -2208,7 +2208,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (!userExposed)
                 dupe.IsAttachment = true;
 
-            dupe.AbsolutePosition = new Vector3(AbsolutePosition.X, AbsolutePosition.Y, AbsolutePosition.Z);
+            dupe.m_sittingAvatars = new List<UUID>();
 
             if (!userExposed)
             {
@@ -3811,20 +3811,23 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Update just the root prim position in a linkset
         /// </summary>
-        /// <param name="pos"></param>
-        public void UpdateRootPosition(Vector3 pos)
+        /// <param name="newPos"></param>
+        public void UpdateRootPosition(Vector3 newPos)
         {
             // needs to be called with phys building true
-            Vector3 newPos = new Vector3(pos.X, pos.Y, pos.Z);
-            Vector3 oldPos =
-                new Vector3(AbsolutePosition.X + m_rootPart.OffsetPosition.X,
-                              AbsolutePosition.Y + m_rootPart.OffsetPosition.Y,
-                              AbsolutePosition.Z + m_rootPart.OffsetPosition.Z);
+            Vector3 oldPos;
+
+            // FIXME: This improves the situation where editing just the root prim of an attached object would send
+            // all the other parts to oblivion after detach/reattach.  However, a problem remains since the root prim
+            // still ends up in the wrong position on reattach.
+            if (IsAttachment)
+                oldPos = RootPart.OffsetPosition;
+            else
+                oldPos = AbsolutePosition + RootPart.OffsetPosition;
+
             Vector3 diff = oldPos - newPos;
-            Vector3 axDiff = new Vector3(diff.X, diff.Y, diff.Z);
             Quaternion partRotation = m_rootPart.RotationOffset;
-            axDiff *= Quaternion.Inverse(partRotation);
-            diff = axDiff;
+            diff *= Quaternion.Inverse(partRotation);
 
             SceneObjectPart[] parts = m_parts.GetArray();
             for (int i = 0; i < parts.Length; i++)
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 261e958..cf03d7c 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -231,6 +231,13 @@ namespace OpenSim.Region.Framework.Scenes
 
         public double SoundRadius;
 
+        /// <summary>
+        /// Should sounds played from this prim be queued?
+        /// </summary>
+        /// <remarks>
+        /// This should only be changed by sound modules.  It is up to sound modules as to how they interpret this setting.
+        /// </remarks>
+        public bool SoundQueueing { get; set; }
 
         public uint TimeStampFull;
 
@@ -383,8 +390,6 @@ namespace OpenSim.Region.Framework.Scenes
 
         private SOPVehicle m_vehicleParams = null;
 
-        private KeyframeMotion m_keyframeMotion = null;
-
         public KeyframeMotion KeyframeMotion
         {
             get; set;
@@ -536,7 +541,11 @@ namespace OpenSim.Region.Framework.Scenes
                         CreatorID = uuid;
                     }
                     if (parts.Length >= 2)
+                    {
                         CreatorData = parts[1];
+                        if (!CreatorData.EndsWith("/"))
+                            CreatorData += "/";
+                    }
                     if (parts.Length >= 3)
                         name = parts[2];
 
@@ -815,7 +824,8 @@ namespace OpenSim.Region.Framework.Scenes
                         }
 
                         // Tell the physics engines that this prim changed.
-                        ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(actor);
+                        if (ParentGroup != null && ParentGroup.Scene != null && ParentGroup.Scene.PhysicsScene != null)
+                            ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(actor);
                     }
                     catch (Exception e)
                     {
@@ -933,7 +943,7 @@ namespace OpenSim.Region.Framework.Scenes
                             //m_log.Info("[PART]: RO2:" + actor.Orientation.ToString());
                         }
 
-                        if (ParentGroup != null)
+                        if (ParentGroup != null && ParentGroup.Scene != null && ParentGroup.Scene.PhysicsScene != null)
                             ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(actor);
                         //}
                     }
@@ -1218,23 +1228,14 @@ namespace OpenSim.Region.Framework.Scenes
         // the mappings more consistant.
         public Vector3 SitTargetPositionLL
         {
-            get { return new Vector3(m_sitTargetPosition.X, m_sitTargetPosition.Y,m_sitTargetPosition.Z); }
+            get { return m_sitTargetPosition; }
             set { m_sitTargetPosition = value; }
         }
 
         public Quaternion SitTargetOrientationLL
         {
-            get
-            {
-                return new Quaternion(
-                                        m_sitTargetOrientation.X,
-                                        m_sitTargetOrientation.Y,
-                                        m_sitTargetOrientation.Z,
-                                        m_sitTargetOrientation.W
-                                        );
-            }
-
-            set { m_sitTargetOrientation = new Quaternion(value.X, value.Y, value.Z, value.W); }
+            get { return m_sitTargetOrientation; }
+            set { m_sitTargetOrientation = value; }
         }
 
         public bool Stopped
@@ -4350,30 +4351,31 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void UpdateGroupPosition(Vector3 pos)
+        public void UpdateGroupPosition(Vector3 newPos)
         {
-            if ((pos.X != GroupPosition.X) ||
-                (pos.Y != GroupPosition.Y) ||
-                (pos.Z != GroupPosition.Z))
+            Vector3 oldPos = GroupPosition;
+
+            if ((newPos.X != oldPos.X) ||
+                (newPos.Y != oldPos.Y) ||
+                (newPos.Z != oldPos.Z))
             {
-                Vector3 newPos = new Vector3(pos.X, pos.Y, pos.Z);
                 GroupPosition = newPos;
                 ScheduleTerseUpdate();
             }
         }
 
         /// <summary>
-        ///
+        /// Update this part's offset position.
         /// </summary>
         /// <param name="pos"></param>
-        public void UpdateOffSet(Vector3 pos)
+        public void UpdateOffSet(Vector3 newPos)
         {
-            if ((pos.X != OffsetPosition.X) ||
-                (pos.Y != OffsetPosition.Y) ||
-                (pos.Z != OffsetPosition.Z))
-            {
-                Vector3 newPos = new Vector3(pos.X, pos.Y, pos.Z);
+            Vector3 oldPos = OffsetPosition;
 
+            if ((newPos.X != oldPos.X) ||
+                (newPos.Y != oldPos.Y) ||
+                (newPos.Z != oldPos.Z))
+            {
                 if (ParentGroup.RootPart.GetStatusSandbox())
                 {
                     if (Util.GetDistanceTo(ParentGroup.RootPart.StatusSandboxPos, newPos) > 10)
@@ -4520,7 +4522,7 @@ namespace OpenSim.Region.Framework.Scenes
             // For now, we use the NINJA naming scheme for identifying joints.
             // In the future, we can support other joint specification schemes such as a 
             // custom checkbox in the viewer GUI.
-            if (ParentGroup.Scene != null && ParentGroup.Scene.PhysicsScene.SupportsNINJAJoints)
+            if (ParentGroup.Scene != null && ParentGroup.Scene.PhysicsScene != null && ParentGroup.Scene.PhysicsScene.SupportsNINJAJoints)
             {
                 return IsHingeJoint() || IsBallJoint();
             }
@@ -4642,6 +4644,11 @@ namespace OpenSim.Region.Framework.Scenes
                             }
                         }
 */
+                        if (pa != null)
+                        {
+                            pa.SetMaterial(Material);
+                            DoPhysicsPropertyUpdate(UsePhysics, true);
+                        }
                     }
                     else // it already has a physical representation
                     {
@@ -5014,6 +5021,14 @@ namespace OpenSim.Region.Framework.Scenes
                 oldTex.DefaultTexture = fallbackOldFace;
             }
 
+            // Materials capable viewers can send a ObjectImage packet
+            // when nothing in TE has changed. MaterialID should be updated
+            // by the RenderMaterials CAP handler, so updating it here may cause a
+            // race condtion. Therefore, if no non-materials TE fields have changed, 
+            // we should ignore any changes and not update Shape.TextureEntry
+
+            bool otherFieldsChanged = false;
+
             for (int i = 0 ; i < GetNumberOfSides(); i++)
             {
 
@@ -5040,18 +5055,36 @@ namespace OpenSim.Region.Framework.Scenes
                 // Max change, skip the rest of testing
                 if (changeFlags == (Changed.TEXTURE | Changed.COLOR))
                     break;
+
+                if (!otherFieldsChanged)
+                {
+                    if (oldFace.Bump != newFace.Bump) otherFieldsChanged = true;
+                    if (oldFace.Fullbright != newFace.Fullbright) otherFieldsChanged = true;
+                    if (oldFace.Glow != newFace.Glow) otherFieldsChanged = true;
+                    if (oldFace.MediaFlags != newFace.MediaFlags) otherFieldsChanged = true;
+                    if (oldFace.OffsetU != newFace.OffsetU) otherFieldsChanged = true;
+                    if (oldFace.OffsetV != newFace.OffsetV) otherFieldsChanged = true;
+                    if (oldFace.RepeatU != newFace.RepeatU) otherFieldsChanged = true;
+                    if (oldFace.RepeatV != newFace.RepeatV) otherFieldsChanged = true;
+                    if (oldFace.Rotation != newFace.Rotation) otherFieldsChanged = true;
+                    if (oldFace.Shiny != newFace.Shiny) otherFieldsChanged = true;
+                    if (oldFace.TexMapType != newFace.TexMapType) otherFieldsChanged = true;
+                }
             }
 
-            m_shape.TextureEntry = newTex.GetBytes();
-            if (changeFlags != 0)
-                TriggerScriptChangedEvent(changeFlags);
-            UpdateFlag = UpdateRequired.FULL;
-            ParentGroup.HasGroupChanged = true;
+            if (changeFlags != 0 || otherFieldsChanged)
+            {
+                m_shape.TextureEntry = newTex.GetBytes();
+                if (changeFlags != 0)
+                    TriggerScriptChangedEvent(changeFlags);
+                UpdateFlag = UpdateRequired.FULL;
+                ParentGroup.HasGroupChanged = true;
 
-            //This is madness..
-            //ParentGroup.ScheduleGroupForFullUpdate();
-            //This is sparta
-            ScheduleFullUpdate();
+                //This is madness..
+                //ParentGroup.ScheduleGroupForFullUpdate();
+                //This is sparta
+                ScheduleFullUpdate();
+            }
         }
 
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index d04d87b..3be0623 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -696,7 +696,8 @@ namespace OpenSim.Region.Framework.Scenes
         /// </param>
         public void StopScriptInstance(TaskInventoryItem item)
         {
-            m_part.ParentGroup.Scene.EventManager.TriggerStopScript(m_part.LocalId, item.ItemID);
+            if (m_part.ParentGroup.Scene != null)
+                m_part.ParentGroup.Scene.EventManager.TriggerStopScript(m_part.LocalId, item.ItemID);
 
             // At the moment, even stopped scripts are counted as active, which is probably wrong.
 //            m_part.ParentGroup.AddActiveScriptCount(-1);
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 7004d23..183d8d1 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -29,7 +29,9 @@ using System;
 using System.Xml;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Threading;
 using System.Timers;
+using Timer = System.Timers.Timer;
 using OpenMetaverse;
 using log4net;
 using Nini.Config;
@@ -73,21 +75,40 @@ namespace OpenSim.Region.Framework.Scenes
 
     public class ScenePresence : EntityBase, IScenePresence
     {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
 //        ~ScenePresence()
 //        {
 //            m_log.DebugFormat("[SCENE PRESENCE]: Destructor called on {0}", Name);
 //        }
 
-        private void TriggerScenePresenceUpdated()
+        public void TriggerScenePresenceUpdated()
         {
             if (m_scene != null)
                 m_scene.EventManager.TriggerScenePresenceUpdated(this);
         }
 
-        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-
         public PresenceType PresenceType { get; private set; }
 
+        private ScenePresenceStateMachine m_stateMachine;
+
+        /// <summary>
+        /// The current state of this presence.  Governs only the existence lifecycle.  See ScenePresenceStateMachine
+        /// for more details.
+        /// </summary>
+        public ScenePresenceState LifecycleState 
+        { 
+            get
+            {
+                return m_stateMachine.GetState();
+            }
+
+            set
+            {
+                m_stateMachine.SetState(value);
+            }
+        }
+
 //        private static readonly byte[] DEFAULT_TEXTURE = AvatarAppearance.GetDefaultTexture().GetBytes();
         private static readonly Array DIR_CONTROL_FLAGS = Enum.GetValues(typeof(Dir_ControlFlags));
         private static readonly Vector3 HEAD_ADJUSTMENT = new Vector3(0f, 0f, 0.3f);
@@ -142,6 +163,8 @@ namespace OpenSim.Region.Framework.Scenes
         private Vector3 m_lastVelocity;
         private Vector3 m_lastSize = new Vector3(0.45f,0.6f,1.9f);
 
+        private bool m_followCamAuto = false;
+
 
         private Vector3? m_forceToApply;
         private int m_userFlags;
@@ -200,7 +223,7 @@ namespace OpenSim.Region.Framework.Scenes
         private float m_sitAvatarHeight = 2.0f;
 
         private Vector3 m_lastChildAgentUpdatePosition;
-        private Vector3 m_lastChildAgentUpdateCamPosition;
+//        private Vector3 m_lastChildAgentUpdateCamPosition;
 
         private const int LAND_VELOCITYMAG_MAX = 12;
 
@@ -290,9 +313,23 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         private Vector3 posLastSignificantMove;
 
-        // For teleports and crossings callbacks
-        string m_callbackURI;
-        UUID m_originRegionID;
+        #region For teleports and crossings callbacks
+
+        /// <summary>
+        /// In the V1 teleport protocol, the destination simulator sends ReleaseAgent to this address.
+        /// </summary>
+        private string m_callbackURI;
+
+        public UUID m_originRegionID;
+
+        /// <summary>
+        /// Used by the entity transfer module to signal when the presence should not be closed because a subsequent
+        /// teleport is reusing the connection.
+        /// </summary>
+        /// <remarks>May be refactored or move somewhere else soon.</remarks>
+        public bool DoNotCloseAfterTeleport { get; set; }
+
+        #endregion
 
         /// <value>
         /// Script engines present in the scene
@@ -795,7 +832,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         public ScenePresence(
             IClientAPI client, Scene world, AvatarAppearance appearance, PresenceType type)
-        {
+        {            
             AttachmentsSyncLock = new Object();
             AllowMovement = true;
             IsChildAgent = true;
@@ -841,6 +878,8 @@ namespace OpenSim.Region.Framework.Scenes
             SetDirectionVectors();
 
             Appearance = appearance;
+
+            m_stateMachine = new ScenePresenceStateMachine(this);
         }
 
         private void RegionHeartbeatEnd(Scene scene)
@@ -874,6 +913,7 @@ namespace OpenSim.Region.Framework.Scenes
         {
             ControllingClient.OnCompleteMovementToRegion += CompleteMovement;
             ControllingClient.OnAgentUpdate += HandleAgentUpdate;
+            ControllingClient.OnAgentCameraUpdate += HandleAgentCamerasUpdate;
             ControllingClient.OnAgentRequestSit += HandleAgentRequestSit;
             ControllingClient.OnAgentSit += HandleAgentSit;
             ControllingClient.OnSetAlwaysRun += HandleSetAlwaysRun;
@@ -937,7 +977,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void MakeRootAgent(Vector3 pos, bool isFlying)
         {
-            m_log.DebugFormat(
+            m_log.InfoFormat(
                 "[SCENE]: Upgrading child to root agent for {0} in {1}",
                 Name, m_scene.RegionInfo.RegionName);
 
@@ -977,6 +1017,11 @@ namespace OpenSim.Region.Framework.Scenes
 
             IsChildAgent = false;
 
+            // Must reset this here so that a teleport to a region next to an existing region does not keep the flag
+            // set and prevent the close of the connection on a subsequent re-teleport.
+            // Should not be needed if we are not trying to tell this region to close
+//            DoNotCloseAfterTeleport = false;
+
             IGroupsModule gm = m_scene.RequestModuleInterface<IGroupsModule>();
             if (gm != null)
                 Grouptitle = gm.GetGroupTitle(m_uuid);
@@ -1153,7 +1198,6 @@ namespace OpenSim.Region.Framework.Scenes
 
             m_scene.EventManager.TriggerOnMakeRootAgent(this);
 
-            m_scene.EventManager.OnRegionHeartbeatEnd += RegionHeartbeatEnd;
         }
 
         public int GetStateSource()
@@ -1306,7 +1350,26 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void StopFlying()
         {
-            ControllingClient.StopFlying(this);
+            Vector3 pos = AbsolutePosition; 
+            if (Appearance.AvatarHeight != 127.0f)
+                pos += new Vector3(0f, 0f, (Appearance.AvatarHeight / 6f));
+            else
+                pos += new Vector3(0f, 0f, (1.56f / 6f));
+
+            AbsolutePosition = pos;
+
+            // attach a suitable collision plane regardless of the actual situation to force the LLClient to land.
+            // Collision plane below the avatar's position a 6th of the avatar's height is suitable.
+            // Mind you, that this method doesn't get called if the avatar's velocity magnitude is greater then a
+            // certain amount..   because the LLClient wouldn't land in that situation anyway.
+
+            // why are we still testing for this really old height value default???
+            if (Appearance.AvatarHeight != 127.0f)
+                CollisionPlane = new Vector4(0, 0, 0, pos.Z - Appearance.AvatarHeight / 6f);
+            else
+                CollisionPlane = new Vector4(0, 0, 0, pos.Z - (1.56f / 6f));
+
+            ControllingClient.SendAgentTerseUpdate(this);
         }
 
         /// <summary>
@@ -1480,6 +1543,26 @@ namespace OpenSim.Region.Framework.Scenes
             
         }
 
+        private bool WaitForUpdateAgent(IClientAPI client)
+        {
+            // Before UpdateAgent, m_originRegionID is UUID.Zero; after, it's non-Zero
+            int count = 50;
+            while (m_originRegionID.Equals(UUID.Zero) && count-- > 0)
+            {
+                m_log.DebugFormat("[SCENE PRESENCE]: Agent {0} waiting for update in {1}", client.Name, Scene.Name);
+                Thread.Sleep(200);
+            }
+
+            if (m_originRegionID.Equals(UUID.Zero))
+            {
+                // Movement into region will fail
+                m_log.WarnFormat("[SCENE PRESENCE]: Update agent {0} never arrived in {1}", client.Name, Scene.Name);
+                return false;
+            }
+
+            return true;
+        }
+
         /// <summary>
         /// Complete Avatar's movement into the region.
         /// </summary>
@@ -1497,6 +1580,15 @@ namespace OpenSim.Region.Framework.Scenes
                 "[SCENE PRESENCE]: Completing movement of {0} into region {1} in position {2}",
                 client.Name, Scene.RegionInfo.RegionName, AbsolutePosition);
 
+            // Make sure it's not a login agent. We don't want to wait for updates during login
+            if (PresenceType != PresenceType.Npc && (m_teleportFlags & TeleportFlags.ViaLogin) == 0)
+            {
+                // Let's wait until UpdateAgent (called by departing region) is done
+                if (!WaitForUpdateAgent(client))
+                    // The sending region never sent the UpdateAgent data, we have to refuse
+                    return;
+            }
+
             Vector3 look = Velocity;
 
             //            if ((look.X == 0) && (look.Y == 0) && (look.Z == 0))
@@ -1518,11 +1610,17 @@ namespace OpenSim.Region.Framework.Scenes
 
             bool flying = ((m_AgentControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_FLY) != 0);
             MakeRootAgent(AbsolutePosition, flying);
+
+            // Tell the client that we're totally ready
             ControllingClient.MoveAgentIntoRegion(m_scene.RegionInfo, AbsolutePosition, look);
 
+            // Remember in HandleUseCircuitCode, we delayed this to here
+            if (m_teleportFlags > 0)
+                SendInitialDataToMe();
+
 //            m_log.DebugFormat("[SCENE PRESENCE] Completed movement");
 
-            if ((m_callbackURI != null) && !m_callbackURI.Equals(""))
+            if (!string.IsNullOrEmpty(m_callbackURI))
             {
                 // We cannot sleep here since this would hold up the inbound packet processing thread, as
                 // CompleteMovement() is executed synchronously.  However, it might be better to delay the release
@@ -1550,7 +1648,6 @@ namespace OpenSim.Region.Framework.Scenes
             // Create child agents in neighbouring regions
             if (openChildAgents && !IsChildAgent)
             {
-
                 IEntityTransferModule m_agentTransfer = m_scene.RequestModuleInterface<IEntityTransferModule>();
                 if (m_agentTransfer != null)
                     m_agentTransfer.EnableChildAgents(this);
@@ -1573,6 +1670,7 @@ namespace OpenSim.Region.Framework.Scenes
 //            m_log.DebugFormat(
 //                "[SCENE PRESENCE]: Completing movement of {0} into region {1} took {2}ms", 
 //                client.Name, Scene.RegionInfo.RegionName, (DateTime.Now - startTime).Milliseconds);
+
         }
 
         /// <summary>
@@ -1653,9 +1751,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void HandleAgentUpdate(IClientAPI remoteClient, AgentUpdateArgs agentData)
         {
-//            m_log.DebugFormat(
-//                "[SCENE PRESENCE]: In {0} received agent update from {1}, flags {2}",
-//                Scene.RegionInfo.RegionName, remoteClient.Name, (AgentManager.ControlFlags)agentData.ControlFlags);
+            //m_log.DebugFormat(
+            //    "[SCENE PRESENCE]: In {0} received agent update from {1}, flags {2}",
+            //    Scene.RegionInfo.RegionName, remoteClient.Name, (AgentManager.ControlFlags)agentData.ControlFlags);
 
             if (IsChildAgent)
             {
@@ -1663,10 +1761,6 @@ namespace OpenSim.Region.Framework.Scenes
                 return;
             }
 
-            ++m_movementUpdateCount;
-            if (m_movementUpdateCount < 1)
-                m_movementUpdateCount = 1;
-
             #region Sanity Checking
 
             // This is irritating.  Really.
@@ -1697,21 +1791,6 @@ namespace OpenSim.Region.Framework.Scenes
 
             AgentManager.ControlFlags flags = (AgentManager.ControlFlags)agentData.ControlFlags;
 
-            // Camera location in world.  We'll need to raytrace
-            // from this location from time to time.
-            CameraPosition = agentData.CameraCenter;
-            if (Vector3.Distance(m_lastCameraPosition, CameraPosition) >= Scene.RootReprioritizationDistance)
-            {
-                ReprioritizeUpdates();
-                m_lastCameraPosition = CameraPosition;
-            }
-
-            // Use these three vectors to figure out what the agent is looking at
-            // Convert it to a Matrix and/or Quaternion
-            CameraAtAxis = agentData.CameraAtAxis;
-            CameraLeftAxis = agentData.CameraLeftAxis;
-            CameraUpAxis = agentData.CameraUpAxis;
-
             // The Agent's Draw distance setting
             // When we get to the point of re-computing neighbors everytime this
             // changes, then start using the agent's drawdistance rather than the 
@@ -1783,8 +1862,14 @@ namespace OpenSim.Region.Framework.Scenes
             // Here's where you get them.
             m_AgentControlFlags = flags;
             m_headrotation = agentData.HeadRotation;
+            byte oldState = State;
             State = agentData.State;
 
+            // We need to send this back to the client in order to stop the edit beams
+            if ((oldState & (uint)AgentState.Editing) != 0 && State == (uint)AgentState.None)
+                ControllingClient.SendAgentTerseUpdate(this);
+
+
             PhysicsActor actor = PhysicsActor;
             if (actor == null)
             {
@@ -1996,10 +2081,78 @@ namespace OpenSim.Region.Framework.Scenes
                 SendControlsToScripts(flagsForScripts);
             }
 
+            // We need to send this back to the client in order to see the edit beams
+            if ((State & (uint)AgentState.Editing) != 0)
+                ControllingClient.SendAgentTerseUpdate(this);
+
             m_scene.EventManager.TriggerOnClientMovement(this);
-            TriggerScenePresenceUpdated();
         }
 
+
+        /// <summary>
+        /// This is the event handler for client cameras. If a client is moving, or moving the camera, this event is triggering.
+        /// </summary>
+        private void HandleAgentCamerasUpdate(IClientAPI remoteClient, AgentUpdateArgs agentData)
+        {
+            //m_log.DebugFormat(
+            //    "[SCENE PRESENCE]: In {0} received agent camera update from {1}, flags {2}",
+            //    Scene.RegionInfo.RegionName, remoteClient.Name, (AgentManager.ControlFlags)agentData.ControlFlags);
+
+            if (IsChildAgent)
+            {
+                //    // m_log.Debug("DEBUG: HandleAgentUpdate: child agent");
+                return;
+            }
+
+            ++m_movementUpdateCount;
+            if (m_movementUpdateCount < 1)
+                m_movementUpdateCount = 1;
+
+//            AgentManager.ControlFlags flags = (AgentManager.ControlFlags)agentData.ControlFlags;
+
+            // Camera location in world.  We'll need to raytrace
+            // from this location from time to time.
+            CameraPosition = agentData.CameraCenter;
+            if (Vector3.Distance(m_lastCameraPosition, CameraPosition) >= Scene.RootReprioritizationDistance)
+            {
+                ReprioritizeUpdates();
+                m_lastCameraPosition = CameraPosition;
+            }
+
+            // Use these three vectors to figure out what the agent is looking at
+            // Convert it to a Matrix and/or Quaternion
+            CameraAtAxis = agentData.CameraAtAxis;
+            CameraLeftAxis = agentData.CameraLeftAxis;
+            CameraUpAxis = agentData.CameraUpAxis;
+
+            // The Agent's Draw distance setting
+            // When we get to the point of re-computing neighbors everytime this
+            // changes, then start using the agent's drawdistance rather than the 
+            // region's draw distance.
+            // DrawDistance = agentData.Far;
+            DrawDistance = Scene.DefaultDrawDistance;
+
+            // Check if Client has camera in 'follow cam' or 'build' mode.
+            Vector3 camdif = (Vector3.One * Rotation - Vector3.One * CameraRotation);
+
+            m_followCamAuto = ((CameraUpAxis.Z > 0.959f && CameraUpAxis.Z < 0.98f)
+               && (Math.Abs(camdif.X) < 0.4f && Math.Abs(camdif.Y) < 0.4f)) ? true : false;
+
+
+            //m_log.DebugFormat("[FollowCam]: {0}", m_followCamAuto);
+            // Raycast from the avatar's head to the camera to see if there's anything blocking the view
+            if ((m_movementUpdateCount % NumMovementsBetweenRayCast) == 0 && m_scene.PhysicsScene.SupportsRayCast())
+            {
+                if (m_followCamAuto)
+                {
+                    Vector3 posAdjusted = m_pos + HEAD_ADJUSTMENT;
+                    m_scene.PhysicsScene.RaycastWorld(m_pos, Vector3.Normalize(CameraPosition - posAdjusted), Vector3.Distance(CameraPosition, posAdjusted) + 0.3f, RayCastCameraCallback);
+                }
+            }
+
+            TriggerScenePresenceUpdated();
+        }
+        
         /// <summary>
         /// Calculate an update to move the presence to the set target.
         /// </summary>
@@ -2309,6 +2462,7 @@ namespace OpenSim.Region.Framework.Scenes
                 AddToPhysicalScene(false);
 
             Animator.TrySetMovementAnimation("STAND");
+            TriggerScenePresenceUpdated();
         }
 
         private SceneObjectPart FindNextAvailableSitTarget(UUID targetID)
@@ -2407,7 +2561,7 @@ namespace OpenSim.Region.Framework.Scenes
                 ControllingClient.SendSitResponse(
                     part.UUID, offset, sitOrientation, false, cameraAtOffset, cameraEyeOffset, forceMouselook);
 
-                m_requestedSitTargetUUID = targetID;
+                m_requestedSitTargetUUID = part.UUID;
 
                 HandleAgentSit(ControllingClient, UUID);
 
@@ -2435,7 +2589,7 @@ namespace OpenSim.Region.Framework.Scenes
             if (part != null)
             {
                 m_requestedSitTargetID = part.LocalId;
-                m_requestedSitTargetUUID = targetID;
+                m_requestedSitTargetUUID = part.UUID;
 
             }
             else
@@ -2554,6 +2708,9 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void HandleAgentSit(IClientAPI remoteClient, UUID agentID)
         {
+            if (IsChildAgent)
+                return;
+
             SceneObjectPart part = m_scene.GetSceneObjectPart(m_requestedSitTargetID);
 
             if (part != null)
@@ -2634,14 +2791,19 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                 Animator.TrySetMovementAnimation(sitAnimation);
                 SendAvatarDataToAllAgents();
+                TriggerScenePresenceUpdated();
             }
         }
 
         public void HandleAgentSitOnGround()
         {
+            if (IsChildAgent)
+                return;
+
 //            m_updateCount = 0;  // Kill animation update burst so that the SIT_G.. will stick..
             m_AngularVelocity = Vector3.Zero;
             Animator.TrySetMovementAnimation("SIT_GROUND_CONSTRAINED");
+            TriggerScenePresenceUpdated();
             SitGround = true;
             RemoveFromPhysicalScene();
         }
@@ -2658,11 +2820,13 @@ namespace OpenSim.Region.Framework.Scenes
         public void HandleStartAnim(IClientAPI remoteClient, UUID animID)
         {
             Animator.AddAnimation(animID, UUID.Zero);
+            TriggerScenePresenceUpdated();
         }
 
         public void HandleStopAnim(IClientAPI remoteClient, UUID animID)
         {
             Animator.RemoveAnimation(animID, false);
+            TriggerScenePresenceUpdated();
         }
 
         public void avnHandleChangeAnim(UUID animID, bool addRemove,bool sendPack)
@@ -2880,11 +3044,12 @@ namespace OpenSim.Region.Framework.Scenes
                 SendOtherAgentsAppearanceToMe();
 
                 EntityBase[] entities = Scene.Entities.GetEntities();
-                foreach(EntityBase e in entities)
+                foreach (EntityBase e in entities)
                 {
                     if (e != null && e is SceneObjectGroup)
                         ((SceneObjectGroup)e).SendFullUpdateToClient(ControllingClient);
                 }
+
             });
         }
 
@@ -3079,11 +3244,10 @@ namespace OpenSim.Region.Framework.Scenes
             }
 
             // Minimum Draw distance is 64 meters, the Radius of the draw distance sphere is 32m
-            if (Util.GetDistanceTo(AbsolutePosition, m_lastChildAgentUpdatePosition) >= Scene.ChildReprioritizationDistance ||
-                Util.GetDistanceTo(CameraPosition, m_lastChildAgentUpdateCamPosition) >= Scene.ChildReprioritizationDistance)
+            if (Util.GetDistanceTo(AbsolutePosition, m_lastChildAgentUpdatePosition) >= Scene.ChildReprioritizationDistance)
             {
                 m_lastChildAgentUpdatePosition = AbsolutePosition;
-                m_lastChildAgentUpdateCamPosition = CameraPosition;
+//                m_lastChildAgentUpdateCamPosition = CameraPosition;
 
                 ChildAgentDataUpdate cadu = new ChildAgentDataUpdate();
                 cadu.ActiveGroupID = UUID.Zero.Guid;
@@ -3110,7 +3274,7 @@ namespace OpenSim.Region.Framework.Scenes
                 cadu.Velocity = Velocity;
 
                 AgentPosition agentpos = new AgentPosition();
-                agentpos.CopyFrom(cadu);
+                agentpos.CopyFrom(cadu, ControllingClient.SessionId);
 
                 // Let's get this out of the update loop
                 Util.FireAndForget(delegate { m_scene.SendOutChildAgentUpdates(agentpos, this); });
@@ -3294,11 +3458,6 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void RestoreInCurrentScene()
-        {
-            AddToPhysicalScene(false); // not exactly false
-        }
-
         public void Reset()
         {
 //            m_log.DebugFormat("[SCENE PRESENCE]: Resetting {0} in {1}", Name, Scene.RegionInfo.RegionName);
@@ -3348,10 +3507,12 @@ namespace OpenSim.Region.Framework.Scenes
             if (byebyeRegions.Count > 0)
             {
                 m_log.Debug("[SCENE PRESENCE]: Closing " + byebyeRegions.Count + " child agents");
-                Util.FireAndForget(delegate 
-                { 
-                    m_scene.SceneGridService.SendCloseChildAgentConnections(ControllingClient.AgentId, byebyeRegions); 
-                });
+
+                AgentCircuitData acd = Scene.AuthenticateHandler.GetAgentCircuitData(UUID);
+                string auth = string.Empty;
+                if (acd != null)
+                    auth = acd.SessionID.ToString();
+                m_scene.SceneGridService.SendCloseChildAgentConnections(ControllingClient.AgentId, auth, byebyeRegions); 
             }
             
             foreach (ulong handle in byebyeRegions)
@@ -3452,6 +3613,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             cAgent.AgentID = UUID;
             cAgent.RegionID = Scene.RegionInfo.RegionID;
+            cAgent.SessionID = ControllingClient.SessionId;
 
             cAgent.Position = AbsolutePosition;
             cAgent.Velocity = m_velocity;
@@ -3694,7 +3856,8 @@ namespace OpenSim.Region.Framework.Scenes
 
 //                if (m_updateCount > 0)
 //                {
-            Animator.UpdateMovementAnimations();
+            if (Animator.UpdateMovementAnimations())
+                TriggerScenePresenceUpdated();
 //                    m_updateCount--;
 //                }
 
@@ -3858,6 +4021,7 @@ namespace OpenSim.Region.Framework.Scenes
 //                Animator.Close();
             Animator = null;
 
+            LifecycleState = ScenePresenceState.Removed;
         }
 
         public void AddAttachment(SceneObjectGroup gobj)
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresenceStateMachine.cs b/OpenSim/Region/Framework/Scenes/ScenePresenceStateMachine.cs
new file mode 100644
index 0000000..cae7fe5
--- /dev/null
+++ b/OpenSim/Region/Framework/Scenes/ScenePresenceStateMachine.cs
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+
+namespace OpenSim.Region.Framework.Scenes
+{
+    /// <summary>
+    /// The possible states that a scene presence can be in.  This is currently orthagonal to whether a scene presence
+    /// is root or child.
+    /// </summary>
+    /// <remarks>
+    /// This is a state machine.
+    ///
+    /// [Entry]               => Running
+    /// Running               => PreRemove, Removing
+    /// PreRemove             => Running, Removing
+    /// Removing              => Removed
+    /// 
+    /// All other methods should only see the scene presence in running state - this is the normal operational state
+    /// Removed state occurs when the presence has been removed.  This is the end state with no exit.
+    /// </remarks>
+    public enum ScenePresenceState
+    {
+        Running,                // Normal operation state.  The scene presence is available.
+        PreRemove,              // The presence is due to be removed but can still be returning to running.
+        Removing,               // The presence is in the process of being removed from the scene via Scene.RemoveClient.
+        Removed,                // The presence has been removed from the scene and is effectively dead.
+                                // There is no exit from this state.
+    }
+
+    internal class ScenePresenceStateMachine
+    {
+        private ScenePresence m_sp;
+        private ScenePresenceState m_state;
+
+        internal ScenePresenceStateMachine(ScenePresence sp)
+        {
+            m_sp = sp;
+            m_state = ScenePresenceState.Running;
+        }
+
+        internal ScenePresenceState GetState()
+        {
+            return m_state;
+        }
+
+        /// <summary>
+        /// Updates the state of an agent that is already in transit.
+        /// </summary>
+        /// <param name='id'></param>
+        /// <param name='newState'></param>
+        /// <returns></returns>
+        /// <exception cref='Exception'>Illegal transitions will throw an Exception</exception>
+        internal void SetState(ScenePresenceState newState)
+        {
+            bool transitionOkay = false;
+
+            lock (this)
+            {
+                if (newState == m_state)
+                    return;
+                else if (newState == ScenePresenceState.Running && m_state == ScenePresenceState.PreRemove)
+                    transitionOkay = true;
+                else if (newState == ScenePresenceState.PreRemove && m_state == ScenePresenceState.Running)
+                    transitionOkay = true;
+                else if (newState == ScenePresenceState.Removing)
+                {   
+                    if (m_state == ScenePresenceState.Running || m_state == ScenePresenceState.PreRemove)
+                        transitionOkay = true;
+                }
+                else if (newState == ScenePresenceState.Removed && m_state == ScenePresenceState.Removing)
+                    transitionOkay = true;
+            }           
+
+            if (!transitionOkay)
+            {
+                throw new Exception(
+                    string.Format(
+                        "Scene presence {0} is not allowed to move from state {1} to new state {2} in {3}",
+                        m_sp.Name, m_state, newState, m_sp.Scene.Name));
+            }
+            else
+            {
+                m_state = newState;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
index ce4fb40..68918d3 100644
--- a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
+++ b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
@@ -1346,7 +1346,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
             if (sop.MediaUrl != null)
                 writer.WriteElementString("MediaUrl", sop.MediaUrl.ToString());
             
-            if (sop.DynAttrs.Count > 0)
+            if (sop.DynAttrs.CountNamespaces > 0)
             {
                 writer.WriteStartElement("DynAttrs");
                 sop.DynAttrs.WriteXml(writer);
diff --git a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
index 5398ab9..bf32251 100644
--- a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
+++ b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
@@ -290,6 +290,9 @@ namespace OpenSim.Region.Framework.Scenes
 
         private void statsHeartBeat(object sender, EventArgs e)
         {
+            if (!m_scene.Active)
+                return;
+
             SimStatsPacket.StatBlock[] sb = new SimStatsPacket.StatBlock[23];
             SimStatsPacket.RegionBlock rb = new SimStatsPacket.RegionBlock();
             
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
index 9557cd0..95b30d5 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneObjectDeRezTests.cs
@@ -33,7 +33,9 @@ using NUnit.Framework;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
+using OpenSim.Region.CoreModules.Framework.EntityTransfer;
 using OpenSim.Region.CoreModules.Framework.InventoryAccess;
+using OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation;
 using OpenSim.Region.CoreModules.World.Permissions;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Services.Interfaces;
@@ -52,6 +54,24 @@ namespace OpenSim.Region.Framework.Scenes.Tests
     [TestFixture]
     public class SceneObjectDeRezTests : OpenSimTestCase
     {
+        [TestFixtureSetUp]
+        public void FixtureInit()
+        {
+            // Don't allow tests to be bamboozled by asynchronous events.  Execute everything on the same thread.
+            // This facility was added after the original async delete tests were written, so it may be possible now
+            // to not bother explicitly disabling their async (since everything will be running sync).
+            Util.FireAndForgetMethod = FireAndForgetMethod.RegressionTest;
+        }
+
+        [TestFixtureTearDown]
+        public void TearDown()
+        {
+            // We must set this back afterwards, otherwise later tests will fail since they're expecting multiple
+            // threads.  Possibly, later tests should be rewritten so none of them require async stuff (which regression
+            // tests really shouldn't).
+            Util.FireAndForgetMethod = Util.DefaultFireAndForgetMethod;
+        }
+
         /// <summary>
         /// Test deleting an object from a scene.
         /// </summary>
@@ -59,7 +79,6 @@ namespace OpenSim.Region.Framework.Scenes.Tests
         public void TestDeRezSceneObject()
         {
             TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
                         
             UUID userId = UUID.Parse("10000000-0000-0000-0000-000000000001");
             
@@ -73,32 +92,77 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             // Turn off the timer on the async sog deleter - we'll crank it by hand for this test.
             AsyncSceneObjectGroupDeleter sogd = scene.SceneObjectGroupDeleter;
             sogd.Enabled = false;            
-            
-            SceneObjectPart part
-                = new SceneObjectPart(userId, PrimitiveBaseShape.Default, Vector3.Zero, Quaternion.Identity, Vector3.Zero);
-            part.Name = "obj1";
-            scene.AddNewSceneObject(new SceneObjectGroup(part), false);
+
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(scene, "so1", userId);
+            uint soLocalId = so.LocalId;
 
             List<uint> localIds = new List<uint>();
-            localIds.Add(part.LocalId);
+            localIds.Add(so.LocalId);
             scene.DeRezObjects(client, localIds, UUID.Zero, DeRezAction.Delete, UUID.Zero);
 
             // Check that object isn't deleted until we crank the sogd handle.
-            SceneObjectPart retrievedPart = scene.GetSceneObjectPart(part.LocalId);
+            SceneObjectPart retrievedPart = scene.GetSceneObjectPart(so.LocalId);
             Assert.That(retrievedPart, Is.Not.Null);
             Assert.That(retrievedPart.ParentGroup.IsDeleted, Is.False);
 
             sogd.InventoryDeQueueAndDelete();
             
-            SceneObjectPart retrievedPart2 = scene.GetSceneObjectPart(part.LocalId);
-            Assert.That(retrievedPart2, Is.Null);
+            SceneObjectPart retrievedPart2 = scene.GetSceneObjectPart(so.LocalId);
+            Assert.That(retrievedPart2, Is.Null);              
+        }
+
+        /// <summary>
+        /// Test that child and root agents correctly receive KillObject notifications.
+        /// </summary>
+        [Test]
+        public void TestDeRezSceneObjectToAgents()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            SceneHelpers sh = new SceneHelpers();
+            TestScene sceneA = sh.SetupScene("sceneA", TestHelpers.ParseTail(0x100), 1000, 1000);
+            TestScene sceneB = sh.SetupScene("sceneB", TestHelpers.ParseTail(0x200), 1000, 999);
+
+            // We need this so that the creation of the root client for userB in sceneB can trigger the creation of a child client in sceneA
+            LocalSimulationConnectorModule lscm = new LocalSimulationConnectorModule();
+            EntityTransferModule etmB = new EntityTransferModule();
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etmB.Name);
+            modulesConfig.Set("SimulationServices", lscm.Name);
+            SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
+            SceneHelpers.SetupSceneModules(sceneB, config, etmB);
+
+            // We need this for derez
+            //SceneHelpers.SetupSceneModules(sceneA, new PermissionsModule());
+
+            UserAccount uaA = UserAccountHelpers.CreateUserWithInventory(sceneA, "Andy", "AAA", 0x1, "");
+            UserAccount uaB = UserAccountHelpers.CreateUserWithInventory(sceneA, "Brian", "BBB", 0x2, "");
+
+            TestClient clientA = (TestClient)SceneHelpers.AddScenePresence(sceneA, uaA).ControllingClient;
+
+            // This is the more long-winded route we have to take to get a child client created for userB in sceneA
+            // rather than just calling AddScenePresence() as for userA
+            AgentCircuitData acd = SceneHelpers.GenerateAgentData(uaB);
+            TestClient clientB = new TestClient(acd, sceneB);
+            List<TestClient> childClientsB = new List<TestClient>();
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(clientB, childClientsB);
+
+            SceneHelpers.AddScenePresence(sceneB, clientB, acd);
+
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(sceneA);
+            uint soLocalId = so.LocalId;
+
+            sceneA.DeleteSceneObject(so, false);
         }
         
         /// <summary>
         /// Test deleting an object from a scene where the deleter is not the owner
         /// </summary>
-        /// 
+        /// <remarks>
         /// This test assumes that the deleter is not a god.       
+        /// </remarks>
         [Test]
         public void TestDeRezSceneObjectNotOwner()
         {
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
index bbfbbfc..bbe34d2 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
@@ -119,7 +119,20 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 
             UUID spUuid = TestHelpers.ParseTail(0x1);
 
+            // The etm is only invoked by this test to check whether an agent is still in transit if there is a dupe
+            EntityTransferModule etm = new EntityTransferModule();
+
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etm.Name);
+            IConfig entityTransferConfig = config.AddConfig("EntityTransfer");
+
+            // In order to run a single threaded regression test we do not want the entity transfer module waiting
+            // for a callback from the destination scene before removing its avatar data.
+            entityTransferConfig.Set("wait_for_callback", false);
+
             TestScene scene = new SceneHelpers().SetupScene();
+            SceneHelpers.SetupSceneModules(scene, config, etm);
             SceneHelpers.AddScenePresence(scene, spUuid);
             SceneHelpers.AddScenePresence(scene, spUuid);
 
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs
new file mode 100644
index 0000000..4ae7a8e
--- /dev/null
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCapabilityTests.cs
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+using System.Threading;
+using System.Timers;
+using Timer = System.Timers.Timer;
+using Nini.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Communications;
+using OpenSim.Framework.Servers;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Region.ClientStack.Linden;
+using OpenSim.Region.CoreModules.Framework;
+using OpenSim.Region.CoreModules.Framework.EntityTransfer;
+using OpenSim.Region.CoreModules.World.Serialiser;
+using OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+
+namespace OpenSim.Region.Framework.Scenes.Tests
+{
+    [TestFixture]
+    public class ScenePresenceCapabilityTests : OpenSimTestCase
+    {
+        [Test]
+        public void TestChildAgentSingleRegionCapabilities()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID spUuid = TestHelpers.ParseTail(0x1);
+
+            // XXX: This is not great since the use of statics will mean that this has to be manually cleaned up for
+            // any subsequent test.
+            // XXX: May replace with a mock IHttpServer later.
+            BaseHttpServer httpServer = new BaseHttpServer(99999);
+            MainServer.AddHttpServer(httpServer);
+            MainServer.Instance = httpServer;
+
+            CapabilitiesModule capsMod = new CapabilitiesModule();
+            TestScene scene = new SceneHelpers().SetupScene();
+            SceneHelpers.SetupSceneModules(scene, capsMod);
+
+            ScenePresence sp = SceneHelpers.AddChildScenePresence(scene, spUuid);
+            //Assert.That(capsMod.GetCapsForUser(spUuid), Is.Not.Null);
+
+            // TODO: Need to add tests for other ICapabiltiesModule methods.
+
+            scene.IncomingCloseAgent(sp.UUID, false);
+            //Assert.That(capsMod.GetCapsForUser(spUuid), Is.Null);
+
+            // TODO: Need to add tests for other ICapabiltiesModule methods.
+        }
+    }
+}
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
index 8775949..12a778b 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
@@ -95,11 +95,11 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             SceneHelpers.SetupSceneModules(sceneB, config, new CapabilitiesModule(), etmB);
 
             AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
-            TestClient tc = new TestClient(acd, sceneA, sh.SceneManager);
+            TestClient tc = new TestClient(acd, sceneA);
             List<TestClient> destinationTestClients = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour(tc, destinationTestClients);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
 
-            ScenePresence originalSp = SceneHelpers.AddScenePresence(sceneA, tc, acd, sh.SceneManager);
+            ScenePresence originalSp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
             originalSp.AbsolutePosition = new Vector3(128, 32, 10);
 
 //            originalSp.Flying = true;
@@ -112,6 +112,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             //moveArgs.BodyRotation = Quaternion.CreateFromEulers(Vector3.Zero);
             moveArgs.BodyRotation = Quaternion.CreateFromEulers(new Vector3(0, 0, (float)-(Math.PI / 2)));
             moveArgs.ControlFlags = (uint)AgentManager.ControlFlags.AGENT_CONTROL_AT_POS;
+            moveArgs.SessionID = acd.SessionID;
 
             originalSp.HandleAgentUpdate(originalSp.ControllingClient, moveArgs);
 
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs
index 8d94d29..fff542b 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTeleportTests.cs
@@ -30,6 +30,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Net;
 using System.Text;
+using System.Threading;
 using Nini.Config;
 using NUnit.Framework;
 using OpenMetaverse;
@@ -107,7 +108,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
         }
 
         [Test]
-        public void TestSameSimulatorIsolatedRegions()
+        public void TestSameSimulatorIsolatedRegionsV1()
         {
             TestHelpers.InMethod();
 //            TestHelpers.EnableLogging();
@@ -136,14 +137,18 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             SceneHelpers.SetupSceneModules(sceneB, config, etmB);
             SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
 
+            // FIXME: Hack - this is here temporarily to revert back to older entity transfer behaviour
+            lscm.ServiceVersion = "SIMULATION/0.1";
+
             Vector3 teleportPosition = new Vector3(10, 11, 12);
             Vector3 teleportLookAt = new Vector3(20, 21, 22);
 
-            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId, sh.SceneManager);
+            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId);
             sp.AbsolutePosition = new Vector3(30, 31, 32);
 
             List<TestClient> destinationTestClients = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour((TestClient)sp.ControllingClient, destinationTestClients);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(
+                (TestClient)sp.ControllingClient, destinationTestClients);
 
             sceneA.RequestTeleportLocation(
                 sp.ControllingClient,
@@ -176,6 +181,67 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 //            Assert.That(sp.Lookat, Is.EqualTo(teleportLookAt));
         }
 
+        [Test]
+        public void TestSameSimulatorIsolatedRegionsV2()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            EntityTransferModule etmA = new EntityTransferModule();
+            EntityTransferModule etmB = new EntityTransferModule();
+            LocalSimulationConnectorModule lscm = new LocalSimulationConnectorModule();
+
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etmA.Name);
+            modulesConfig.Set("SimulationServices", lscm.Name);
+
+            SceneHelpers sh = new SceneHelpers();
+            TestScene sceneA = sh.SetupScene("sceneA", TestHelpers.ParseTail(0x100), 1000, 1000);
+            TestScene sceneB = sh.SetupScene("sceneB", TestHelpers.ParseTail(0x200), 1002, 1000);
+
+            SceneHelpers.SetupSceneModules(sceneA, config, etmA);
+            SceneHelpers.SetupSceneModules(sceneB, config, etmB);
+            SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
+
+            Vector3 teleportPosition = new Vector3(10, 11, 12);
+            Vector3 teleportLookAt = new Vector3(20, 21, 22);
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId);
+            sp.AbsolutePosition = new Vector3(30, 31, 32);
+
+            List<TestClient> destinationTestClients = new List<TestClient>();
+            EntityTransferHelpers.SetupSendRegionTeleportTriggersDestinationClientCreateAndCompleteMovement(
+                (TestClient)sp.ControllingClient, destinationTestClients);
+
+            sceneA.RequestTeleportLocation(
+                sp.ControllingClient,
+                sceneB.RegionInfo.RegionHandle,
+                teleportPosition,
+                teleportLookAt,
+                (uint)TeleportFlags.ViaLocation);
+
+            Assert.That(sceneA.GetScenePresence(userId), Is.Null);
+
+            ScenePresence sceneBSp = sceneB.GetScenePresence(userId);
+            Assert.That(sceneBSp, Is.Not.Null);
+            Assert.That(sceneBSp.Scene.RegionInfo.RegionName, Is.EqualTo(sceneB.RegionInfo.RegionName));
+            Assert.That(sceneBSp.AbsolutePosition, Is.EqualTo(teleportPosition));
+
+            Assert.That(sceneA.GetRootAgentCount(), Is.EqualTo(0));
+            Assert.That(sceneA.GetChildAgentCount(), Is.EqualTo(0));
+            Assert.That(sceneB.GetRootAgentCount(), Is.EqualTo(1));
+            Assert.That(sceneB.GetChildAgentCount(), Is.EqualTo(0));
+
+            // TODO: Add assertions to check correct circuit details in both scenes.
+
+            // Lookat is sent to the client only - sp.Lookat does not yield the same thing (calculation from camera
+            // position instead).
+//            Assert.That(sp.Lookat, Is.EqualTo(teleportLookAt));
+        }
+
         /// <summary>
         /// Test teleport procedures when the target simulator returns false when queried about access.
         /// </summary>
@@ -224,7 +290,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             Vector3 teleportPosition = new Vector3(10, 11, 12);
             Vector3 teleportLookAt = new Vector3(20, 21, 22);
 
-            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId, sh.SceneManager);
+            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId);
             sp.AbsolutePosition = preTeleportPosition;
 
             // Make sceneB return false on query access
@@ -300,7 +366,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             Vector3 teleportPosition = new Vector3(10, 11, 12);
             Vector3 teleportLookAt = new Vector3(20, 21, 22);
 
-            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId, sh.SceneManager);
+            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId);
             sp.AbsolutePosition = preTeleportPosition;
 
             // Make sceneB refuse CreateAgent
@@ -389,7 +455,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             Vector3 teleportPosition = new Vector3(10, 11, 12);
             Vector3 teleportLookAt = new Vector3(20, 21, 22);
 
-            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId, sh.SceneManager);
+            ScenePresence sp = SceneHelpers.AddScenePresence(sceneA, userId);
             sp.AbsolutePosition = preTeleportPosition;
 
             sceneA.RequestTeleportLocation(
@@ -425,10 +491,10 @@ namespace OpenSim.Region.Framework.Scenes.Tests
         }
 
         [Test]
-        public void TestSameSimulatorNeighbouringRegions()
+        public void TestSameSimulatorNeighbouringRegionsV1()
         {
             TestHelpers.InMethod();
-            TestHelpers.EnableLogging();
+//            TestHelpers.EnableLogging();
 
             UUID userId = TestHelpers.ParseTail(0x1);
 
@@ -454,15 +520,18 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             SceneHelpers.SetupSceneModules(sceneA, config, new CapabilitiesModule(), etmA);
             SceneHelpers.SetupSceneModules(sceneB, config, new CapabilitiesModule(), etmB);
 
+            // FIXME: Hack - this is here temporarily to revert back to older entity transfer behaviour
+            lscm.ServiceVersion = "SIMULATION/0.1";
+
             Vector3 teleportPosition = new Vector3(10, 11, 12);
             Vector3 teleportLookAt = new Vector3(20, 21, 22);
 
             AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
-            TestClient tc = new TestClient(acd, sceneA, sh.SceneManager);
+            TestClient tc = new TestClient(acd, sceneA);
             List<TestClient> destinationTestClients = new List<TestClient>();
-            EntityTransferHelpers.SetUpInformClientOfNeighbour(tc, destinationTestClients);
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
 
-            ScenePresence beforeSceneASp = SceneHelpers.AddScenePresence(sceneA, tc, acd, sh.SceneManager);
+            ScenePresence beforeSceneASp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
             beforeSceneASp.AbsolutePosition = new Vector3(30, 31, 32);
 
             Assert.That(beforeSceneASp, Is.Not.Null);
@@ -506,5 +575,89 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 
 //            TestHelpers.DisableLogging();
         }
+
+        [Test]
+        public void TestSameSimulatorNeighbouringRegionsV2()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            EntityTransferModule etmA = new EntityTransferModule();
+            EntityTransferModule etmB = new EntityTransferModule();
+            LocalSimulationConnectorModule lscm = new LocalSimulationConnectorModule();
+
+            IConfigSource config = new IniConfigSource();
+            IConfig modulesConfig = config.AddConfig("Modules");
+            modulesConfig.Set("EntityTransferModule", etmA.Name);
+            modulesConfig.Set("SimulationServices", lscm.Name);
+
+            SceneHelpers sh = new SceneHelpers();
+            TestScene sceneA = sh.SetupScene("sceneA", TestHelpers.ParseTail(0x100), 1000, 1000);
+            TestScene sceneB = sh.SetupScene("sceneB", TestHelpers.ParseTail(0x200), 1001, 1000);
+
+            SceneHelpers.SetupSceneModules(new Scene[] { sceneA, sceneB }, config, lscm);
+            SceneHelpers.SetupSceneModules(sceneA, config, new CapabilitiesModule(), etmA);
+            SceneHelpers.SetupSceneModules(sceneB, config, new CapabilitiesModule(), etmB);
+
+            Vector3 teleportPosition = new Vector3(10, 11, 12);
+            Vector3 teleportLookAt = new Vector3(20, 21, 22);
+
+            AgentCircuitData acd = SceneHelpers.GenerateAgentData(userId);
+            TestClient tc = new TestClient(acd, sceneA);
+            List<TestClient> destinationTestClients = new List<TestClient>();
+            EntityTransferHelpers.SetupInformClientOfNeighbourTriggersNeighbourClientCreate(tc, destinationTestClients);
+
+            ScenePresence beforeSceneASp = SceneHelpers.AddScenePresence(sceneA, tc, acd);
+            beforeSceneASp.AbsolutePosition = new Vector3(30, 31, 32);
+
+            Assert.That(beforeSceneASp, Is.Not.Null);
+            Assert.That(beforeSceneASp.IsChildAgent, Is.False);
+
+            ScenePresence beforeSceneBSp = sceneB.GetScenePresence(userId);
+            Assert.That(beforeSceneBSp, Is.Not.Null);
+            Assert.That(beforeSceneBSp.IsChildAgent, Is.True);
+
+            // Here, we need to make clientA's receipt of SendRegionTeleport trigger clientB's CompleteMovement().  This
+            // is to operate the teleport V2 mechanism where the EntityTransferModule will first request the client to
+            // CompleteMovement to the region and then call UpdateAgent to the destination region to confirm the receipt
+            // Both these operations will occur on different threads and will wait for each other.
+            // We have to do this via ThreadPool directly since FireAndForget has been switched to sync for the V1
+            // test protocol, where we are trying to avoid unpredictable async operations in regression tests.
+            tc.OnTestClientSendRegionTeleport 
+                += (regionHandle, simAccess, regionExternalEndPoint, locationID, flags, capsURL) 
+                    => ThreadPool.UnsafeQueueUserWorkItem(o => destinationTestClients[0].CompleteMovement(), null);
+
+            sceneA.RequestTeleportLocation(
+                beforeSceneASp.ControllingClient,
+                sceneB.RegionInfo.RegionHandle,
+                teleportPosition,
+                teleportLookAt,
+                (uint)TeleportFlags.ViaLocation);
+
+            ScenePresence afterSceneASp = sceneA.GetScenePresence(userId);
+            Assert.That(afterSceneASp, Is.Not.Null);
+            Assert.That(afterSceneASp.IsChildAgent, Is.True);
+
+            ScenePresence afterSceneBSp = sceneB.GetScenePresence(userId);
+            Assert.That(afterSceneBSp, Is.Not.Null);
+            Assert.That(afterSceneBSp.IsChildAgent, Is.False);
+            Assert.That(afterSceneBSp.Scene.RegionInfo.RegionName, Is.EqualTo(sceneB.RegionInfo.RegionName));
+            Assert.That(afterSceneBSp.AbsolutePosition, Is.EqualTo(teleportPosition));
+
+            Assert.That(sceneA.GetRootAgentCount(), Is.EqualTo(0));
+            Assert.That(sceneA.GetChildAgentCount(), Is.EqualTo(1));
+            Assert.That(sceneB.GetRootAgentCount(), Is.EqualTo(1));
+            Assert.That(sceneB.GetChildAgentCount(), Is.EqualTo(0));
+
+            // TODO: Add assertions to check correct circuit details in both scenes.
+
+            // Lookat is sent to the client only - sp.Lookat does not yield the same thing (calculation from camera
+            // position instead).
+//            Assert.That(sp.Lookat, Is.EqualTo(teleportLookAt));
+
+//            TestHelpers.DisableLogging();
+        }
     }
 }
diff --git a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
index b09ae39..e60a025 100644
--- a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
+++ b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
@@ -34,6 +34,7 @@ using System.Threading;
 using log4net;
 using OpenMetaverse;
 using OpenMetaverse.Assets;
+using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Scenes.Serialization;
 using OpenSim.Services.Interfaces;
@@ -180,6 +181,14 @@ namespace OpenSim.Region.Framework.Scenes
                         if (!assetUuids.ContainsKey(tii.AssetID))
                             GatherAssetUuids(tii.AssetID, (AssetType)tii.Type, assetUuids);
                     }
+
+                    // FIXME: We need to make gathering modular but we cannot yet, since gatherers are not guaranteed
+                    // to be called with scene objects that are in a scene (e.g. in the case of hg asset mapping and
+                    // inventory transfer.  There needs to be a way for a module to register a method without assuming a 
+                    // Scene.EventManager is present.
+//                    part.ParentGroup.Scene.EventManager.TriggerGatherUuids(part, assetUuids);
+
+                    GatherMaterialsUuids(part, assetUuids);
                 }
                 catch (Exception e)
                 {
@@ -205,6 +214,73 @@ namespace OpenSim.Region.Framework.Scenes
 //        }
 
         /// <summary>
+        /// Gather all of the texture asset UUIDs used to reference "Materials" such as normal and specular maps
+        /// </summary>
+        /// <param name="part"></param>
+        /// <param name="assetUuids"></param>
+        public void GatherMaterialsUuids(SceneObjectPart part, IDictionary<UUID, AssetType> assetUuids)
+        {
+            // scan thru the dynAttrs map of this part for any textures used as materials
+            OSD osdMaterials = null;
+
+            lock (part.DynAttrs)
+            {
+                if (part.DynAttrs.ContainsStore("OpenSim", "Materials"))
+                {
+                    OSDMap materialsStore = part.DynAttrs.GetStore("OpenSim", "Materials");
+
+                    if (materialsStore == null)
+                        return;
+
+                    materialsStore.TryGetValue("Materials", out osdMaterials);
+                }
+
+                if (osdMaterials != null)
+                {
+                    //m_log.Info("[UUID Gatherer]: found Materials: " + OSDParser.SerializeJsonString(osd));
+
+                    if (osdMaterials is OSDArray)
+                    {
+                        OSDArray matsArr = osdMaterials as OSDArray;
+                        foreach (OSDMap matMap in matsArr)
+                        {
+                            try
+                            {
+                                if (matMap.ContainsKey("Material"))
+                                {
+                                    OSDMap mat = matMap["Material"] as OSDMap;
+                                    if (mat.ContainsKey("NormMap"))
+                                    {
+                                        UUID normalMapId = mat["NormMap"].AsUUID();
+                                        if (normalMapId != UUID.Zero)
+                                        {
+                                            assetUuids[normalMapId] = AssetType.Texture;
+                                            //m_log.Info("[UUID Gatherer]: found normal map ID: " + normalMapId.ToString());
+                                        }
+                                    }
+                                    if (mat.ContainsKey("SpecMap"))
+                                    {
+                                        UUID specularMapId = mat["SpecMap"].AsUUID();
+                                        if (specularMapId != UUID.Zero)
+                                        {
+                                            assetUuids[specularMapId] = AssetType.Texture;
+                                            //m_log.Info("[UUID Gatherer]: found specular map ID: " + specularMapId.ToString());
+                                        }
+                                    }
+                                }
+
+                            }
+                            catch (Exception e)
+                            {
+                                m_log.Warn("[UUID Gatherer]: exception getting materials: " + e.Message);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+       
+        /// <summary>
         /// Get an asset synchronously, potentially using an asynchronous callback.  If the
         /// asynchronous callback is used, we will wait for it to complete.
         /// </summary>