Made reseting the create game dialogue box only select 'Only regeistered...

Made reseting the create game dialogue box only select 'Only regeistered users' if player is a registered user.

cockatrice/src/dlg_creategame.cpp

@@ -193,7 +193,7 @@ void DlgCreateGame::actReset()
 
     passwordEdit->setText("");
     onlyBuddiesCheckBox->setChecked(false);
-    onlyRegisteredCheckBox->setChecked(true);
+    onlyRegisteredCheckBox->setChecked(room && room->getUserInfo()->user_level() & ServerInfo_User::IsRegistered);
 
     spectatorsAllowedCheckBox->setChecked(true);
     spectatorsNeedPasswordCheckBox->setChecked(false);