point to the latest fixtures in keystoneauth so we do not need to
update code in two spots.

Change-Id: I1e9ffdafd4dc06b84bc643e570dbea0132b47540

Currently tox ignores D400.
D400: First line should end with a period.
This change removes it and make keystoneclient docstrings compliant with it.

Change-Id: I29ecb4c58bb03c0b9a3be0b7a74d18fb06a350f2

swap instances of utils.positional with the positional library.

Change-Id: Id8a9961e68d287a802f25512fc970829e9feb5c2

Using a mutable type implies that it's acceptable for the set of
publicly-accessible attributes to be mutated at runtime, which defeats
their intended purpose of documenting the public interface. Tuples are
immutable.

Change-Id: Ib3ab93224ba240040b08ece481ef5ba620c3f658

The fixtures will automatically stub UUID values for required token
fields, so we can check for those returned values rather than specify
fixed string values.

Change-Id: I8a6cc675c6c8ee14772a38d8fc38475885ebc605

oslo_utils.timeutils.isotime() is deprecated as of 1.6 so we need
to stop using it.

The deprecation message says to use datetime.datetime.isoformat()
instead, but the format of the string generated by isoformat isn't
the same as the format of the string generated by isotime. The string
is used in tokens and other public APIs and we can't change it
without potentially breaking clients.

So the workaround is to copy the current implementation from
oslo_utils.timeutils.isotime() to keystone.common.utils.isotime().

Change-Id: I34b12b96de3ea21beaf935ed8a9f6bae2fe0d0bc
Closes-Bug: 1461251

OpenStack hacking guidelines say to not import objects, only
modules[1].

[1] http://docs.openstack.org/developer/hacking/#imports

Change-Id: I6ccb7fda5c406458567bd20ccc1d673fca245191

The service catalog should contain an endpoint id and service id in the
v3 token and an endpoint id in the v2 token.

Change-Id: I8835bcb7c68ae8d0175b6f58a4750cd6e25fd84c