Pass entire scene object in OnLoginsEnabled event rather than just the region name.

This saves listeners from having to re-retrieve the scene from their own lists, which won't work anyway if multiple regions with the same name have been allowed

OpenSim/Region/Framework/Scenes/EventManager.cs

@@ -496,14 +496,13 @@ namespace OpenSim.Region.Framework.Scenes
         public delegate void RegionHeartbeatEnd(Scene scene);
         public event RegionHeartbeatEnd OnRegionHeartbeatEnd;
 
-        public delegate void LoginsEnabled(string regionName);
-
         /// <summary>
         /// This should only fire in all circumstances if the RegionReady module is active.
         /// </summary>
         /// <remarks>
         /// TODO: Fire this even when the RegionReady module is not active.
         /// </remarks>
+        public delegate void LoginsEnabled(IScene scene);
         public event LoginsEnabled OnLoginsEnabled;
 
         public delegate void PrimsLoaded(Scene s);
@@ -2477,7 +2476,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void TriggerLoginsEnabled (string regionName)
+        public void TriggerLoginsEnabled(Scene scene)
         {
             LoginsEnabled handler = OnLoginsEnabled;
 
@@ -2487,7 +2486,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     try
                     {
-                        d(regionName);
+                        d(scene);
                     }
                     catch (Exception e)
                     {

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -1493,7 +1493,7 @@ namespace OpenSim.Region.Framework.Scenes
                             {
                                 // need to be able to tell these have changed in RegionReady
                                 LoginLock = false;
-                                EventManager.TriggerLoginsEnabled(RegionInfo.RegionName);
+                                EventManager.TriggerLoginsEnabled(this);
                             }
     
                             // For RegionReady lockouts