The positional decorator results in poorly maintainable code in
a misguided effort to emulate python3's key-word-arg only notation
and functionality. This patch removes keystoneclient's dependance
on the positional decorator.

Change-Id: I9e691cc8b0c04992f4a8dabd67e1b413d3220d23

Replaces the occurrences of "204 No Content" with
the correct return and rtype.

Change-Id: Id782cda4d226c96c31d375fd2432e9d7e28e2f77

This is to remove unused LOG to keep code clean.

Change-Id: Ic123f89a341d6cf57c4f26568b626a49c6745045

In preparation to add functional tests for v3 users, this change
proposes to detail the method docs, because the tests need to be
based on them.

Change-Id: I8f725ca8071e592fdf932bf83f72eaebf588bb6b

Currently tox ignores D204, D205, and D207.
D204: 1 blank required after class docstring.
D205: Blank line required between one-line summary and description.
D207: Docstring is under-indented.
This change removes  D204, D205, and D207 ignores in tox and fix violations.

Change-Id: Id20d216fbd7647d468859b960088aac61c582d9b

swap instances of utils.positional with the positional library.

Change-Id: Id8a9961e68d287a802f25512fc970829e9feb5c2

This method says it's deprecated but it's an internal method, so
there's no need to deprecate it, just remove it.

Change-Id: I916b4a5c9dc2320a4bff7f966fd0c7d5a4957ff9

User password update hardcoded the endpoint_filter to always use the public
endpoint. This will break deployments where services behind the firewall have
no access to the public endpoint. Endpoint selection should be allowed
by the end user (i.e. openstack --os-interface internal user password set).

Closes-Bug: 1503459

Change-Id: Ib11d60cd8e81b99aedb27f1cbbf6b79218045cf0

UserManager's project argument wasn't properly deprecated since the
deprecation was logged. Proper deprecation requires use of
warnings/debtcollector and documentation.

bp deprecations

Change-Id: Idebce2e9781f6f92be402e9441f2116b63b4f832