### 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)

QWidget(parent),
    m_node(node),
    ui(new Ui::RPCConsole),
    platformStyle(_platformStyle)
{
    ui->setupUi(this);
    QSettings settings;
    if (!restoreGeometry(settings.value("RPCConsoleWindowGeometry").toByteArray())) {
        // 
        move(QApplication::desktop()->availableGeometry().center() - frameGeometry().center());
    }
    QChar nonbreaking_hyphen(8209);
    ui->dataDir->setToolTip(ui->dataDir->toolTip().arg(QString(nonbreaking_hyphen) + "datadir"));
    ui->blocksDir->setToolTip(ui->blocksDir->toolTip().arg(QString(nonbreaking_hyphen) + "blocksdir"));
    ui->openDebugLogfileButton->setToolTip(ui->openDebugLogfileButton->toolTip().arg(tr(PACKAGE_NAME)));
    if (platformStyle->getImagesOnButtons()) {
        ui->openDebugLogfileButton->setIcon(platformStyle->SingleColorIcon(":/icons/export"));
    }
    ui->clearButton->setIcon(platformStyle->SingleColorIcon(":/icons/remove"));
    ui->fontBiggerButton->setIcon(platformStyle->SingleColorIcon(":/icons/fontbigger"));