Added some Alert methods to Scene , and a console command handler. So from the console to send alerts use : alert general <message> , for a instance wide message , or use alert firstname secondname <message> to send a alert to one user. (TODO: add region wide messages).

OpenSim/Framework/General/Interfaces/IClientAPI.cs

@@ -190,6 +190,7 @@ namespace OpenSim.Framework.Interfaces
         void SendInventoryItemDetails(LLUUID ownerID, LLUUID folderID, InventoryItemBase item);
         void SendNameReply(LLUUID profileId, string firstname, string lastname);
 
-        
+        void SendAlertMessage(string message);
+        void SendAgentAlertMessage(string message, bool modal);
     }
 }