now engine can be optionally built as library, there's an example wrapper of how to use it
building server is now disabled by default, saves users some headaches
#include <QApplication>
#include "mainform.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWindow *mainWin = new MyWindow;
mainWin->show();
return app.exec();
}