Allow passing arguments to QSettings()

[jrast]

It would be nice to have a option to pass arguments to the constructor of QSettings in the QSettingsManager.

I have made a quick fix for me to use a .ini file instead of the registry which looks something like this:

class IniSettingsManager(QSettingsManager):

    def __init__(self, path, defaults=None, *args, **kwargs):
        self.ini_path = path
        super(IniSettingsManager, self).__init__(defaults, *args, **kwargs)


    def reset(self):
        """
            Reset the config manager to it's initialised state.

            This initialises QSettings, unsets all defaults and removes all handlers, maps, and hooks.
        """
        self.settings = QSettings(self.ini_path, QSettings.IniFormat)
        self.handlers = {}
        self.handler_callbacks = {}
        self.defaults = {}
        self.maps = {}
        self.eventhooks = {}