systrayicon: Use --debug

[buhtz]

I am not into qtsystrayicon.py so much. So I leave it to you Jürgen.

To my current observation the qtsystrayicon.py is not called with --debug if BIT is in debug mode. This should be changed.

But before that there is another problem. The first argument to qtsystrayicon.py is interpreted as the profile id. So if you call qtsystrayicon.py --debug the "--debug" is the profile id and will fail of course. One solution would be to remove the argument like this:

if __name__ == '__main__':

    logger.openlog()

    if "--debug" in sys.argv:  # HACK: Minimal arg parsing to enable debug-level logging
        logger.DEBUG = True
        sys.argv.remove('--debug')

Or to modify QtSysTrayIcon.__init()__ where you can find such a section:

        if len(sys.argv) > 1:
            if not self.config.setCurrentProfile(sys.argv[1]):
                logger.warning("Failed to change Profile_ID %s"
                               %sys.argv[1], self)

Not sure if the systrayicon will need to interpret more arguments then the profileid and --debug? Maybe just check all arguments if one of them is a number and use this?

My observation is based on research in relation to #1785