Add a 0 parameter overload for RestClient.Request() for use when no auth is required. This preserves API compatibility for external modules using this function.

OpenSim/Framework/Communications/RestClient.cs

@@ -296,6 +296,14 @@ namespace OpenSim.Framework.Communications
 
         #endregion Async communications with server
 
+        /// <summary>
+        /// Perform a synchronous request
+        /// </summary>
+        public Stream Request()
+        {
+            return Request(null);
+        }
+
         /// <summary>
         /// Perform a synchronous request
         /// </summary>