Added RemoveAvatar() method to physics plugins, should be called on log out (needs doing) and when downgrading a client to a child-avatar (should be working)

OpenSim.RegionServer/world/Avatar.cs

@@ -72,6 +72,10 @@ namespace OpenSim.world
             {
                 this._physActor = value;
             }
+            get
+            {
+                return _physActor;
+            }
         }
 
         public override void addForces()

OpenSim.RegionServer/world/World.cs

@@ -600,6 +600,10 @@ namespace OpenSim.world
                 {
                     Avatars.Remove(agentClient.AgentID);
                 }
+                if (agentClient.ClientAvatar.PhysActor != null)
+                {
+                    this.phyScene.RemoveAvatar(agentClient.ClientAvatar.PhysActor);
+                }
             }
             catch (Exception e)
             {