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">

{
    this->walletModel = _walletModel;
    
    transactionView->setModel(_walletModel);
    overviewPage->setWalletModel(_walletModel);
    receiveCoinsPage->setModel(_walletModel);
    sendCoinsPage->setModel(_walletModel);
    usedReceivingAddressesPage->setModel(_walletModel ? _walletModel->getAddressTableModel() : nullptr);
    usedSendingAddressesPage->setModel(_walletModel ? _walletModel->getAddressTableModel() : nullptr);
    if (_walletModel)
    {
        
        connect(_walletModel, &WalletModel::message, this, &WalletView::message);
        
        connect(_walletModel, &WalletModel::encryptionStatusChanged, this, &WalletView::encryptionStatusChanged);
        updateEncryptionStatus();
        
        Q_EMIT hdEnabledStatusChanged();
        
        connect(_walletModel->getTransactionTableModel(), &TransactionTableModel::rowsInserted, this, &WalletView::processNewTransaction);
        
        connect(_walletModel, &WalletModel::requireUnlock, this, &WalletView::unlockWallet);
        
        connect(_walletModel, &WalletModel::showProgress, this, &WalletView::showProgress);
    }
}
void WalletView::processNewTransaction(const QModelIndex& parent, int start, int )