pbr>=1.6
Babel>=1.3
netifaces>=0.10.4 # MIT
six>=1.9.0
oslo.config>=3.4.0  # Apache-2.0
oslo.log>=1.14.0  # Apache-2.0
oslo.serialization>=1.10.0              # Apache-2.0
oslo.utils>=3.4.0                       # Apache-2.0
taskflow>=1.26.0  # Apache-2.0

pbr>=1.6
Babel>=1.3
netifaces>=0.10.4 # MIT
six>=1.9.0
oslo.config>=3.4.0  # Apache-2.0
oslo.log>=1.14.0  # Apache-2.0
oslo.serialization>=1.10.0              # Apache-2.0
oslo.utils>=3.4.0                       # Apache-2.0
taskflow>=1.26.0  # Apache-2.0
setuptools<20.2

Work around docs build fail: downgrade setuptools
Work around docs build fail: downgrade setuptools

For reasons as yet not understood, the docs build is failing with:

Traceback (most recent call last):
  File "setup.py", line 22, in <module>
    pbr=True)
  File "/usr/lib/python2.7/distutils/core.py", line 151, in setup
    dist.run_commands()
  File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pbr/builddoc.py",
line 198, in run
    setup_command.BuildDoc.run(self)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/sphinx/setup_command.py",
line 158, in run
    freshenv=self.fresh_env)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/sphinx/application.py",
line 107, in __init__
    confoverrides or {}, self.tags)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/sphinx/config.py",
line 229, in __init__
    execfile_(filename, config)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/sphinx/util/pycompat.py",
line 105, in execfile_
    exec code in _globals
  File "conf.py", line 59, in <module>
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pbr/version.py",
line 457, in version_string
    return self.semantic_version().brief_string()
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pbr/version.py",
line 452, in semantic_version
    self._semantic = self._get_version_from_pkg_resources()
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pbr/version.py",
line 431, in _get_version_from_pkg_resources
    requirement = pkg_resources.Requirement.parse(self.package)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pkg_resources/__init__.py",
line 2818, in parse
    req, = parse_requirements(s)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pkg_resources/__init__.py",
line 2762, in parse_requirements
    req = packaging.requirements.Requirement(line)
  File
"/home/efried/Neo/nova-powervm/.tox/docs/local/lib/python2.7/site-packages/pkg_resources/_vendor/packaging/requirements.py",
line 94, in __init__
    requirement_string[e.loc:e.loc + 8]))
pkg_resources._vendor.packaging.requirements.InvalidRequirement: Invalid
requirement, parse error at "'__packag'"

Downgrading setuptools works around the issue.  We'll do this to get the
build moving until we can figure out the right long-term solution.

Change-Id: I60d95487f53c14d3088ce2c157181adf65d5faac
