Make v1 create_image & update_image 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 create_image and update_image of v1 image client
to use **kwargs.

Partially implements blueprint consistent-service-method-names

Change-Id: Ia03d5e8fdf7d7eac338665670b561e452a1d31d9
3 files changed