Resolves issue #528. Fixed platform-specific order of buttons on seed prompt and new room prompt. Fixed height of back button on all pages -- now aligns to bottom. On pagemain, feedback and dlc buttons no longer fixed size.

#include <QtGui/QApplication>
#include "mainwindow.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}