* Swaps Scene.Entities Dictionary for EntityManager.

* Important Changes: Scene.Entities is now IEnumerable directly. You do not need to use Entities.Values, you can Enumerate on .Entities directly. (So 'foreach Scene.Entities' vs 'foreach Scene.Entities.Values').
* Locks: Entities maintains it's own internal locking states. This means you do not need to lock entities anymore. I'll be going through and removing locks on it systematically.

OpenSim/Region/Environment/Scenes/EntityManager.cs

@@ -71,21 +71,25 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
-        public void Remove(uint localID)
+        public bool Remove(uint localID)
         {
             lock(m_lock)
             {
-                m_eb_uuid.Remove(m_eb_localID[localID].UUID);
-                m_eb_localID.Remove(localID);
+                bool a = m_eb_uuid.Remove(m_eb_localID[localID].UUID);
+                bool b =  m_eb_localID.Remove(localID);
+
+                return a && b;
             }
         }
 
-        public void Remove(UUID id)
+        public bool Remove(UUID id)
         {
             lock(m_lock)
             {
-                m_eb_localID.Remove(m_eb_uuid[id].LocalId);
-                m_eb_uuid.Remove(id);
+                bool a = m_eb_localID.Remove(m_eb_uuid[id].LocalId);
+                bool b = m_eb_uuid.Remove(id);
+
+                return a && b;
             }
         }
 
@@ -145,6 +149,22 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
+        public bool TryGetValue(UUID key, out EntityBase obj)
+        {
+            lock(m_lock)
+            {
+                return m_eb_uuid.TryGetValue(key, out obj);
+            }
+        }
+
+        public bool TryGetValue(uint key, out EntityBase obj)
+        {
+            lock (m_lock)
+            {
+                return m_eb_localID.TryGetValue(key, out obj);
+            }
+        }
+
         /// <summary>
         /// This could be optimised to work on the list 'live' rather than making a safe copy and iterating that.
         /// </summary>