-includeconf=<path> support in config handler, for including external configuration files

src/bitcoind.cpp

@@ -92,7 +92,7 @@ bool AppInit(int argc, char* argv[])
         }
         try
         {
-            gArgs.ReadConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME));
+            gArgs.ReadConfigFiles();
         } catch (const std::exception& e) {
             fprintf(stderr,"Error reading configuration file: %s\n", e.what());
             return false;