Migrate to nova api version 2.1

The Nova v2 API code has been completely removed from Nova by
change[1]. Although Nova still supports v2 compatible API with the
legacy endpoint, it is better to switch to use Nova v2.1 in Heat.

This change sets version='2.1' when init novaclient
instance, then we can use novaclient v2 and will
use nova api v2.1.

[1] https://review.openstack.org/#/c/311653/

Change-Id: I428abb4ca05847da8ffc2da7157aa5c34263a205
Closes-Bug: #1588155
Partial-Bug: #1588171
1 file changed
tree: 30c9c0de5d6dd5701217405126737e8ad701c648
  1. common/
  2. functional/
  3. scenario/