Add tox, pep and requirements to project

Adding minimal amount of things to be able to run
tox against code and check all unit tests + pep

requirements.txt

@@ -0,0 +1,6 @@
+oslo.config
+paramiko>=1.8.0
+pbr>=0.5.21,<1.0
+psutil
+sh
+six

setup.cfg

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+[metadata]
+name = rally
+version = 0.0.1
+summary = OpenStack Benchmark System
+description-file =
+    README.rst
+author = OpenStack
+author-email = openstack-dev@lists.openstack.org
+home-page = http://www.openstack.org/
+classifier =
+    Environment :: OpenStack
+    Intended Audience :: Developers
+    Intended Audience :: Information Technology
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Programming Language :: Python
+    Programming Language :: Python :: 2
+    Programming Language :: Python :: 2.7
+
+[files]
+packages =
+    rally
+
+[global]
+setup-hooks =
+    pbr.hooks.setup_hook

setup.py

@@ -0,0 +1,7 @@
+#!/usr/bin/env python
+
+import setuptools
+
+setuptools.setup(
+    setup_requires=['pbr>=0.5.21,<1.0'],
+    pbr=True)

test-requirements.txt

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+# Install bounded pep8/pyflakes first, then let flake8 install
+pep8==1.4.5
+pyflakes==0.7.2
+flake8==2.0
+hacking>=0.5.3,<0.7
+
+coverage
+discover
+fixtures>=0.3.12
+jsonschema
+mock
+python-subunit
+testrepository>=0.0.13
+testtools>=0.9.22

tox.ini

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+[tox]
+envlist = py26,py27,pep8
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         LANG=en_US.UTF-8
+         LANGUAGE=en_US:en
+         LC_ALL=C
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+commands = python setup.py testr --testr-args='{posargs}'
+distribute = false
+
+[testenv:pep8]
+commands = flake8
+distribute = false
+
+[testenv:venv]
+commands = {posargs}
+
+[testenv:cover]
+commands = python setup.py testr --coverage --testr-args='{posargs}'
+
+[tox:jenkins]
+downloadcache = ~/cache/pip
+
+[flake8]
+show-source = true
+builtins = _
+exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,tools