upgrade Nova client version for kingbird drivers

[Goutham Pratapa]

Currently,

The current nova client version present in Kingbird drivers is not upto-date and with the current version we cannot get the list of keypairs for a particular user.

--example:
The current version is 2.1 and with this version we are getting the below error when listing keypairs for a given user.

self.nova.keypairs.list(user_id='0400f8ef09784b5980fafb31732c70e5')
'''
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/novaclient/api_versions.py", line 370, in substitution
    return methods[-1].func(obj, *args, **kwargs)
TypeError: list() got an unexpected keyword argument 'user_id'
'''

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/411375
Committed: https://git.openstack.org/cgit/openstack/kingbird/commit/?id=b4433b60c77a3204a88c8801bd2b29fba0996c63
Submitter: Jenkins
Branch: master

commit b4433b60c77a3204a88c8801bd2b29fba0996c63
Author: Goutham Pratapa <email address hidden>
Date: Thu Dec 15 20:35:38 2016 +0530

    Implement Keypair sync for Kingbird

    Keypair_sync syncs multiple keypairs from one region to another region.
    Add test-case for the same.

    Partially Depends on: Iba1c789715aa7c7d00a7a2ec23a449c72a757ac1

    closes-Bug: 1640162

    Change-Id: I42ed749f8e2c91740249735d32ef8494e50f17f8