Changed it so only .ini file types are loaded from the (optional) config directory rather all files types in that folder.

OpenSim/Region/Application/ConfigurationLoader.cs

@@ -92,11 +92,14 @@ namespace OpenSim
                 m_log.InfoFormat("Searching folder: {0} , for config ini files", iniDirName);
                 string[] fileEntries = Directory.GetFiles(iniDirName);
                 foreach (string filePath in fileEntries)
+                {
+                    if (Path.GetExtension(filePath).ToLower() == ".ini")
                     {
                         // m_log.InfoFormat("reading ini file < {0} > from config dir", filePath);
                         ReadConfig(Path.GetFileName(filePath), filePath, m_config, false);
                     }
                 }
+            }
             
             // Check for .INI file (either default or name passed on command
             // line) or XML config source over http