Setup Appium webdriver

        :returns: a new remote Appium driver

def _setup_appium(self):
        """Setup Appium webdriver

        :returns: a new remote Appium driver
        """
        self.config.set('Server', 'host', '127.0.0.1')
        self.config.set('Server', 'port', '4723')
        return self._create_remote_driver()