message: gui: disable File->CreateWallet during startup
  Github-Pull:
  Rebased-From:
diff: @@ -341,6 +341,7 @@ void BitcoinGUI::createActions()
  m_close_wallet_action->setStatusTip(tr("Close wallet"));
  m_create_wallet_action = new QAction(tr("Create Wallet..."), this);
  + m_create_wallet_action->setEnabled(false);
  m_create_wallet_action->setStatusTip(tr("Create a new wallet"));
  showHelpMessageAction = new QAction(tr("&Command-line options"), this);
  @@ -617,6 +618,7 @@ void BitcoinGUI::setWalletController(WalletController* wallet_controller)
  m_wallet_controller = wallet_controller;
  + m_create_wallet_action->setEnabled(true);
  m_open_wallet_action->setEnabled(true);
  m_open_wallet_action->setMenu(m_open_wallet_menu);
  