**This patch is a merge of 2 patches that needed to be backported**

unwedge the gate

devstack defaults to v3 and makes some janky assumptions in
the generated rc files
(cherry picked from commit bd14d078098eb2055c0dae784de892b0b1346ed5)

Add all regions to cloud configuration

OCC now requires all regions to be listed in the cloud
configuration. Update the shell unit tests to list all
of the regions being tested.

Change-Id: Ic7300d1f708339701b5daadbf2c4769b239a2adb
(cherry picked from commit d1311f9742ad93198b9ca72f47d51710e17ced38)

devstack now defaults to image api v2, but osc does not support
v2 image create. set the functional tests to use v1 for now
to unwedge the gate.

Closes-Bug: #1496337
Change-Id: Ia02ed761446b8de52c932a424b9c423691ebcceb

Functional tests rely on some sort of configuration and
rather than configure something right now, how about it
pulls something from the middle of the available list.

Change-Id: I8147e40e5ee7393d8a8dcf1b0beb48856f28af7e

keystone added a new property to projects, called is_domain.
our functional tests fail because we are not expecting that in
the project's 'show' command.

Change-Id: Idf05118155847e3a6002818c44b99825801ea9f4
Related-Bug: #1487600

add tests for:

  * delete
  * set
  * list
  * show 

Change-Id: Ibe34f28d7ae77d139a6e0edf4fe04215c371c9a8

seems like test_server_up is causing intermittent issues in our
CI, skipping for now, so we can proceed with merging code.

Change-Id: Id41a78e703d7b416dfdc9a7bc95b19a8999192e3
Related-Bug: 1483422

Combine test_volume_set_one_propety and
test_volume_type_set_unset_properties.

Change-Id: Ia8862a59161f6a15880b87ea305fb5bb15c31300