Add a visual gear for drawing circles. Intent is to allow specifying areas on map for lua scripts (such as to indicate a location to go to). Could also be used to, say, circle a hog in CTF. Also add a "Critical" flag for visual gears so a gear flagges as such will always be created.

/*
 * Copyright (C) 2008 Remko Troncon
 */

#ifndef AUTOUPDATER_H
#define AUTOUPDATER_H

class AutoUpdater
{
    public:
        virtual ~AutoUpdater();

        virtual void checkForUpdates() = 0;
};

#endif