### Describe the issue
Warning messages are not displayed when running bitcoin-qt 0.14.2 and 0.14.99 with -disablewallet.
It might be better to always display them.

E.g. on MainNet the "This is a pre-release test build - use at your own risk - do not use for mining or merchant applications" is lost
![image](https://user-images.githubusercontent.com/3296421/29109760-853e5394-7ce4-11e7-8f05-bfcd66ada471.png)
![image](https://user-images.githubusercontent.com/3296421/29109806-adf6e67a-7ce4-11e7-8564-8883c44656ad.png)

On TestNet also the "Warning: unknown new rules activated (versionbit 28)" is missed
![image](https://user-images.githubusercontent.com/3296421/29110269-6b24b79e-7ce6-11e7-91e7-823227eaa200.png)
![image](https://user-images.githubusercontent.com/3296421/29110035-9142cf34-7ce5-11e7-8faf-264e805cdaf4.png)

const int wallet_index = ui->WalletSelector->currentIndex();
        if (wallet_index > 0) {
            walletID = (QString)ui->WalletSelector->itemData(wallet_index).value<QString>();
        }
        if (m_last_wallet_id != walletID) {
            if (walletID.isNull()) {
                message(CMD_REQUEST, tr("Executing command without any wallet"));
            } else {
                message(CMD_REQUEST, tr("Executing command using \"%1\" wallet").arg(walletID));
            }
            m_last_wallet_id = walletID;
        }
#endif
        message(CMD_REQUEST, QString::fromStdString(strFilteredCmd));
        Q_EMIT cmdRequest(cmd, walletID);
        cmd = QString::fromStdString(strFilteredCmd);
        // R
        history.removeOne(cmd);
        // A
        history.append(cmd);
        // E
        while(history.size() > CONSOLE_HISTORY)
            history.removeFirst();
        // S
        historyPtr = history.size();
        // S
        scrollToEnd();
    }
}
void RPCConsole::browseHistory(int offset)