Fix argument precedence hack
  Working around issues in os-client-config <= 1.18.0

  This is ugly because the issues in o-c-c 1.19.1 run even deeper
  than in 1.18.0, so we're going to use 1.19.0 get_one_cloud() that
  is known to work for OSC and fix o-c-c with an axe.

Remove return values for set commands
  'identity provider set' and 'service provider set' were still
  returning their show-like data, this is a fail for set commands
  now, don't know how this ever passed before...

Constraints are ready to be used for tox.ini
  Per email[1] from Andreas, we don't need to hack at install_command
  any longer.

  [1] http://openstack.markmail.org/thread/a4l7tokbotwqvuoh

Co-authorioed-by: Steve Martinelli <s.martinelli@gmail.com>
Depends-On: I49313dc7d4f44ec897de7a375f25b7ed864226f1
Change-Id: I426548376fc7d3cdb36501310dafd8c44d22ae30

A role entity can now be specified as domain specific.

Closes-bug: #1606105
Change-Id: I564cf3da1d61f5bfcf85be591480d2f5c8d694a0

The current identity role list command (both v2 and v3) is
overloaded with listing roles as well as assignments (if you
provide user, group, project or domain options). This is in
addition to the v3 assignment list command designed for this
purpose.

This overloading complicates the fact that roles can now be
domain specific (i.e. have a domain attribute), so the
command 'role list --domain <domain-name' will soon become
ambigious (this is in a follow on patch).

This patch:

- Adds a v2 assignments list, with support for pulling the
user and project from the auth credentials
- For comapability, adds the same auth support to the
existing v3 assignments list
- Deprecates the use of role list and user role list to list
assignments

Change-Id: I65bafdef4f8c89e863dab101369d0d629fa818b8
Partial-Bug: 1605774

Some files have execute permission unnecessarily. Change them from
755 to 644.

Change-Id: I471ebd1c3d123ad4a7376f7f5996f53f8c2d9b0b

Support bulk deletion for delete commands in the list below
identity/v3/consumer
identity/v3/credential
identity/v3/domain
identity/v3/ec2creds
identity/v3/endpoint
identity/v3/federation_protocol
identity/v3/identity_provider
identity/v3/mapping
identity/v3/policy
identity/v3/region
identity/v3/service_provider
identity/v3/service

The unit test in identityv3 need to be refactored, so I add
some functional tests instead. I will add all unit tests at
one time after the refactor completed.

Change-Id: I82367570f59817b47c87b6c7bfeae95ccfe5c50e
Closes-Bug: #1592906

Change-Id: I5f49c038a75ea67674b6d9279a6e60d6ded8d12f

Change-Id: I554b41969f96b62a2c6d37024caa56b1441d5ed1
Partial-bug: #1588588

When an exception was caught and rethrown,
it should call 'raise' without any arguments
because it shows the place where an exception
occured initially instead of place where the exception re-raised.

Change-Id: I5fb6dea5da7fb6e1e2b339a713c7d37f8c99e407