Engine: * Added possibility to fade the screen in/out using black or white * Added flash effect to screenshot key * Added fade in for round start * Added fade out for round end * Goal display now ignores first tick. So long loading times no longer "eat" their visibility time.

#include <QApplication>

#include "mainform.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyWindow *mainWin = new MyWindow;
    mainWin->show();
    return app.exec();
}