Update stats views.

def update_views(self):
        """Update stats views."""
        # Call the father's method
        super(Plugin, self).update_views()

        if 'containers' not in self.stats:
            return False

        # Add specifics informations
        # Alert
        for i in self.stats['containers']:
            # Init the views for the current container (key = container name)
            self.views[i[self.get_key()]] = {'cpu': {}, 'mem': {}}
            # CPU alert
            if 'cpu' in i and 'total' in i['cpu']:
                # Looking for specific CPU container threasold in the conf file
                alert = self.get_alert(i['cpu']['total'],
                                       header=i['name'] + '_cpu',
                                       action_key=i['name'])
                if alert == 'DEFAULT':
                    # Not found ? Get back to default CPU threasold value
                    alert = self.get_alert(i['cpu']['total'], header='cpu')
                self.views[i[self.get_key()]]['cpu']['decoration'] = alert
            # MEM alert
            if 'memory' in i and 'usage' in i['memory']:
                # Looking for specific MEM container threasold in the conf file
                alert = self.get_alert(i['memory']['usage'],
                                       maximum=i['memory']['limit'],
                                       header=i['name'] + '_mem',
                                       action_key=i['name'])
                if alert == 'DEFAULT':
                    # Not found ? Get back to default MEM threasold value
                    alert = self.get_alert(i['memory']['usage'],
                                           maximum=i['memory']['limit'],
                                           header='mem')
                self.views[i[self.get_key()]]['mem']['decoration'] = alert

        return True