* Implement saving of region settings in OAR files

* This means that you can now save terrain textures, water height, etc.
* Estate settings are not supported
* Older OAR files without these settings can still be loaded

OpenSim/Region/Environment/Interfaces/IEstateModule.cs

@@ -35,5 +35,10 @@ namespace OpenSim.Region.Environment.Interfaces
     {
         uint GetRegionFlags();
         bool IsManager(UUID avatarID);
+        
+        /// <summary>
+        /// Tell all clients about the current state of the region (terrain textures, water height, etc.)
+        /// </summary>
+        void sendRegionHandshakeToAll();
     }
 }