update sdl functions to latest revision add a grayscale utility to uiimage implement a preliminary support for chatting revert rotation changes for engine lots of code cleanup restored main event loop in hwengine fix some sdl bindings

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

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