`retries` count is None if cinder client created with session

[Georgy Dyuldin]

If cinderclient constructing with passing keystone session object, `retries` property became to be None (instead of 0).

Example here: http://paste.openstack.org/show/607335/

If python version is 3 - this raises a TypeError on comparison here https://github.com/openstack/python-cinderclient/blob/master/cinderclient/client.py#L161
(TypeError: unorderable types: int() > NoneType())

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/458455
Committed: https://git.openstack.org/cgit/openstack/python-cinderclient/commit/?id=85b56e1d88710453b3f2d5ceba1ad5a8715eb842
Submitter: Jenkins
Branch: master

commit 85b56e1d88710453b3f2d5ceba1ad5a8715eb842
Author: Georgy Dyuldin <email address hidden>
Date: Thu Apr 20 14:03:44 2017 +0300

    Fix client `retries` default value.

    In case of constructing Client with session without specifying `retries`
    value, `cinderclient.client.Client.retries` value become to None,
    instead of 0. This raises TypeError on python 3 during comparison
    `attempts > self.retries` on
    `cinderclient.client.SessionClient._cs_request`

    Closes-Bug: #1684787
    Change-Id: If1ac36acb0d1c92e9779e3e8995606c9b34f2cde

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-cinderclient 2.1.0 release.