Wait for and dismiss an alert. Returns the text from the alert.
    @Params
    driver - the webdriver object (required)
    timeout - the time to wait for the alert in seconds

def wait_for_and_dismiss_alert(driver, timeout=settings.LARGE_TIMEOUT):
    """
    Wait for and dismiss an alert. Returns the text from the alert.
    @Params
    driver - the webdriver object (required)
    timeout - the time to wait for the alert in seconds
    """
    alert = wait_for_and_switch_to_alert(driver, timeout)
    alert_text = alert.text
    alert.dismiss()
    return alert_text