hacking should go under tests, no reason to pollute the top level
directory with non-keystoneclient related bits.

Change-Id: Ib4e9a3acfbab5a115c76bbc8bbf7241f42c6eac8

Caching is enabled by default from pip version 6.0

More info:
https://testrun.org/tox/latest/config.html#confval-downloadcache=path
https://pip.pypa.io/en/stable/reference/pip_install/#caching

Change-Id: I8524f5cd26d3c7fb76f7d727f0a2135d2b278fd2

To solve the problem of "db type could not be determined" on py34 we
have to run first the py34 env to, then, run py27. This patch puts py34
first on the tox.ini list of envs to avoid this problem to happen.

Change-Id: I0cc290e9fc13c8d61d933fe4b457008df0a29c5a
Closes-Bug: #1489059

Because python creates pyc files during tox runs, certain
changes in the tree, like deletes of files, or switching
branches, can create spurious errors.

Change-Id: Ib2af15b06f75b86edd4d7f7ca37695b85b12b311
Closes-Bug: #1368661

as mentioned in the mailing list, we need to include release notes
for libraries, note that we do not include changes for liberty.

Change-Id: I6497aac36720e2bea3f25316a426ea9fedb96c79

We are removing Python 2.6 support from the Keystone libraries.

Change-Id: I1c7a79edd41a73946c9d77bfb8cd2075e2500760
Closes-Bug: 1519449

This introduces a linter for PEP257 to avoid trivial nitpicking of
docstrings in code reviews. Because flake8_docstrings simply provides a
plugin to add pep257 to flake8, you can run it via `tox -e pep8`.

PEP257 checks which we are currently violating are ignored in tox.ini.
We can remove them from the ignored list as they are fixed.

Change-Id: I01ebad7b70cf61dd80d3c06c6808d8178fbdd634
Related-Bug: 1501544
Depends-On: I60adf0dca4aa32f4ef6bca61250b375c8a3703c6

The setup.cfg refers to Programming Language of Python 3.3 whereas
jenkins is setup only to test Python 3.4. This patch updates setup.cfg
and removes py33 from tox.ini.

TrivialFix

Change-Id: I1bc7fae6481c4fef71746ed1c144af37445a81ac