Made log level debug for to error model extensions

Author: niemyjski

src/Exceptionless/Extensions/ToErrorModelExtensions.cs

@@ -199,7 +199,7 @@ private static void PopulateStackTrace(this Error error, Error root, Exception e
             }
 
             if (frames == null || frames.Length == 0) {
-                log.Info(typeof(ExceptionlessClient), "Error " + error.Message + " contained no stack frames");
+                log.Debug(typeof(ExceptionlessClient), "Error " + error.Message + " contained no stack frames");
                 return;
             }