'Creates a dictionary with
{plugin-name : [(setting-name, setting-value)]} structure. This is used
to hold all the plugins settings models'

def createPluginsSettingsModel(self):

    models = {}
    for plugin_id in self.plugin_settings.iteritems():
        plugin_info = plugin_id[1]
        store = Gtk.ListStore(str, str)
        for setting in plugin_info['settings'].items():
            setting_name = setting[0]
            setting_value = setting[1]
            store.append([setting_name, setting_value])
        models[plugin_id[1]['name']] = store
    return models
