Returns monitor status and alltimeuptimeratio for a MonitorId.

def getMonitorById(self, monitorId):
        """
        Returns monitor status and alltimeuptimeratio for a MonitorId.
        """
        url = self.baseUrl
        url += "getMonitors?apiKey=%s&monitors=%s" % (self.apiKey, monitorId)
        url += "&noJsonCallback=1&format=json"
        success, response = self.requestApi(url)
        if success:
            status = response.get('monitors').get('monitor')[0].get('status')
            alltimeuptimeratio = response.get('monitors').get('monitor')[0].get('alltimeuptimeratio')
            return status, alltimeuptimeratio
        return None, None