cluster delete faild

[chenyb4]

In python-openstacksdk 0.9.19 version. cluster don't support delete or force-delete.

when was execute "openstack cluster delete cluster001" operation, appear error:

run(Namespace(cluster=[u'cluster001'], force=False, force_delete=False))
take_action(Namespace(cluster=[u'cluster001'], force=False, force_delete=False))
Connection: <openstack.connection.Connection object at 0x4814350>
Clustering client initialized using OpenStackSDK: <openstack.cluster.v1._proxy.Proxy object at 0x4a9b190>
Are you sure you want to delete this cluster(s) [y/N]?y
 cluster001: failed due to 'delete_cluster() takes at most 3 arguments (4 given)'
clean_up DeleteCluster:
END return value: 0

in python-openstacksdk 0.9.19 code, cluster/v1/_proxy.py delete_cluster function miss force-delete parameter, python-senlinclient pass in 4 parameters, but pytho-openstacksdk only receive 3 parameter.

python-openstacksdk 0.9.19 code:
https://github.com/openstack/python-openstacksdk/blob/0.9.19/openstack/cluster/v1/_proxy.py#L199

python-senlinclient code:
https://github.com/openstack/python-senlinclient/blob/master/senlinclient/v1/cluster.py#L361

Use python-senlinclient master code, senlin cluster/node delete don't finish. so, The cherry pick cluster force-delete commit to 0.9.19 is required from the openstacksdk master.