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">

{
    overviewAction->setChecked(true);
    if (walletFrame) walletFrame->gotoOverviewPage();
}
void BitcoinGUI::gotoHistoryPage()
{
    historyAction->setChecked(true);
    if (walletFrame) walletFrame->gotoHistoryPage();
}
void BitcoinGUI::gotoReceiveCoinsPage()
{
    receiveCoinsAction->setChecked(true);
    if (walletFrame) walletFrame->gotoReceiveCoinsPage();
}
void BitcoinGUI::gotoSendCoinsPage(QString addr)
{
    sendCoinsAction->setChecked(true);
    if (walletFrame) walletFrame->gotoSendCoinsPage(addr);
}
void BitcoinGUI::gotoSignMessageTab(QString addr)
{
    if (walletFrame) walletFrame->gotoSignMessageTab(addr);
}
void BitcoinGUI::gotoVerifyMessageTab(QString addr)