Retrieve a list of all actions that have been executed on a Floating IP.

def list_floating_ip_actions(self, ip_addr):
        """
        Retrieve a list of all actions that have been executed on a Floating IP.
        """
        if self.api_version == 2:
            json = self.request('/floating_ips/' + ip_addr + '/actions')
            return json['actions']
        else:
            raise DoError(v2_api_required_str)