Make volume_qos_client use **kwargs

As we discussed on
http://lists.openstack.org/pipermail/openstack-dev/2015-July/068864.html
All http POST/PUT methods need to contain **kwargs as their arguments.
This patch makes volume_qos_client  use **kwargs.

Partially implements blueprint consistent-service-method-names

Change-Id: I28d6a86b9986e3d281e358dfe4a925d8ed8c5f21
2 files changed