Information in the progress window (example: rescan) is displayed capped to fixed size instead of contents.

<img width="209" alt="screenshot 2018-12-21 at 14 58 20" src="https://user-images.githubusercontent.com/26601261/50345943-0bbd4300-0531-11e9-9c6c-e277ac69eb0c.png">

{
    
    SignVerifyMessageDialog *signVerifyMessageDialog = new SignVerifyMessageDialog(platformStyle, this);
    signVerifyMessageDialog->setAttribute(Qt::WA_DeleteOnClose);
    signVerifyMessageDialog->setModel(walletModel);
    signVerifyMessageDialog->showTab_SM(true);
    if (!addr.isEmpty())
        signVerifyMessageDialog->setAddress_SM(addr);
}
void WalletView::gotoVerifyMessageTab(QString addr)
{
    
    SignVerifyMessageDialog *signVerifyMessageDialog = new SignVerifyMessageDialog(platformStyle, this);
    signVerifyMessageDialog->setAttribute(Qt::WA_DeleteOnClose);
    signVerifyMessageDialog->setModel(walletModel);
    signVerifyMessageDialog->showTab_VM(true);
    if (!addr.isEmpty())
        signVerifyMessageDialog->setAddress_VM(addr);
}
bool WalletView::handlePaymentRequest(const SendCoinsRecipient& recipient)
{
    return sendCoinsPage->handlePaymentRequest(recipient);
}
void WalletView::showOutOfSyncWarning(bool fShow)
{
    overviewPage->showOutOfSyncWarning(fShow);
}
void WalletView::updateEncryptionStatus()