Now v2 API uses code from v3. It's confusing and logically incorrect.
This patch makes v3 API as an extended version of v2.

The next patches related to this bug duplicated code between v1 and v2,
v2 and v3 will be removed.

Change-Id: I90a2b713556e91db69270a03ef6b798e08f93f90
Partial-Bug: #1643584

Add support for Cinder API /v3 endpoint.
A couple of unit tests for /v3 endpoint were added to v3/test_shell.py
to ensure that the v3 shell works, and to also test that modules work
with:
from cinderclient.v2.availability_zones import *
syntax.

Change-Id: I6ae0ada221bebb4ab1850d9c99b10fcbb585201f
Implements: https://blueprints.launchpad.net/python-cinderclient/+spec/add-v3-endpoint-support

Added request_ids attribute to resource object for all the
cgsnapshots, consistencygroups, qos_specs, quota_classes,
quotas and services APIs by updating following APIs:

cgsnapshots: delete, update
consistencygroups: delete, update, create
qos_specs: delete, associate, disassociate, disassociate_all
quota_classes: update
quotas: update
services: enable, disable, disable_log_reason

These changes are required to return 'request_id' from client to
log request_id mappings of cross projects.

For more details on how request_id will be returned to the caller,
please refer to the approved blueprint [1] discussed with the
cross-project team.
[1] http://specs.openstack.org/openstack/openstack-specs/specs/return-request-id.html

DocImpact
'request-ids' will be returned as an attribute with response object.
User can access it using 'res.request_ids' where 'res' is a
response object.

Change-Id: I7b399512fcec9ecd31938656deb60e325bb76ad4
Partial-Implements: blueprint return-request-id-to-caller

This patch adds the updated quota values to the output shell

Closes-Bug: #1316474
Change-Id: I95bbefa5fdee316a3a3ba77a5b3067345da3344f

Add the command quota-delete <tenant_id> to the client.

This change depends on the cinder change:
Ia040a20abb831c311eb13624ddecbbf0f12fdd9f

DocImpact

Implements blueprint quota-delete
Change-Id: I1e5c98154dc3c6de168747eb912b45265cd1b9db

Python3 changed the behavior of dict.keys such that it is now
returns a dict_keys object, which is iterable but not indexable.
You can get the python2 result back with an explicit call to list.

Refactor list(*.keys()) so that it just uses list().

Change-Id: Ib2e9646ac967e9bd7cc4f47e2099f5d1358808a9
Signed-off-by: Chuck Short <chuck.short@canonical.com>

Added a new command quota-usage to allow querying the usage of the
quota for a given tenant

Change-Id: I720e6df94f9fedbb8b6385bd1707600542aaea08

NOTE:
* openstack/common/* should be synced from oslo, so i leave them
untouched.
* add (c) symbol for related lines, leave others untouched.

Change-Id: I46a87c7f248d3468b1fdf5661411962faf2fb875
Fixes-Bug: #1214176

blueprint quotas-limits-by-voltype

Change-Id: I1bb676689c79fe1b14a14a81b21105a02ec117ef