DBus: enable dbus-daemon.exe to be used as background process

[darealshinji]

I had built an app that uses QtDBus, so I need the DBus daemon to run in background. I can launch it as an autostart process, but the command promt is kept open, which is not what I want. So I've added a call to FreeConsole() to main.c.
I guess this is somewhat similar to running dbus-daemon --fork on Linux. I don't know if I should also open a bug report to upstream.

--- a/bus/main.c
+++ b/bus/main.c
@@ -744,6 +744,10 @@
   _dbus_set_signal_handler (SIGHUP, signal_handler);
 #endif /* DBUS_UNIX */
 
+#ifdef DBUS_WIN
+  FreeConsole();
+#endif /* DBUS_WIN */
+
   _dbus_verbose ("We are on D-Bus...\n");
   _dbus_daemon_report_ready ();
   _dbus_loop_run (bus_context_get_loop (context));