Update build config

Use latest pbr things that don't require pbr. Also update the tox config
to ensure venv is updated properly.

Change-Id: I157127abd129bbe085c64e2a14f67296da0c4b5e

setup.py

@@ -14,12 +14,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
 setuptools.setup(
-    setup_requires=['d2to1>=0.2.10,<0.3', 'pbr>=0.5,<0.6'],
-    d2to1=True,
-    namespace_packages=['oslo'],
-    packages=['oslo', 'oslo.sphinx'],
-    zip_safe=False,
-)
+    setup_requires=['pbr'],
+    pbr=True)

test-requirements.txt

@@ -0,0 +1 @@
+hacking>=0.5.6,<0.8

tox.ini

@@ -1,7 +1,11 @@
 [tox]
+minversion = 1.6
+skipsdist = True
 envlist = pep8
 
 [testenv]
+usedevelop = True
+install_command = pip install {opts} {packages}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 setenv = VIRTUAL_ENV={envdir}
@@ -9,11 +13,6 @@ sitepackages = False
 downloadcache = {toxworkdir}/_download
 
 [testenv:pep8]
-# Install bounded pep8/pyflakes first, then let flake8 install
-deps = pep8==1.4.5
-       pyflakes==0.7.2
-       flake8==2.0
-       hacking>=0.5.6,<0.7
 commands =
     flake8 oslo