### 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)

{
    if (ui->tabWidget->widget(index) == ui->tab_console)
        ui->lineEdit->setFocus();
    else if (ui->tabWidget->widget(index) != ui->tab_peers)
        clearSelectedNode();
}
void RPCConsole::on_openDebugLogfileButton_clicked()
{
    GUIUtil::openDebugLogfile();
}
void RPCConsole::scrollToEnd()
{
    QScrollBar *scrollbar = ui->messagesWidget->verticalScrollBar();
    scrollbar->setValue(scrollbar->maximum());
}
void RPCConsole::on_sldGraphRange_valueChanged(int value)
{
    const int multiplier = 5; // e
    int mins = value * multiplier;
    setTrafficGraphRange(mins);
}
void RPCConsole::setTrafficGraphRange(int mins)