Support building wheels (PEP-427)
Support building wheels (PEP-427)

With that, "python setup.py bdist_wheel" could be used for building and uploading wheels to PyPI.

Change-Id: I4fa49ba01d96ed16a9315daaa35bec2271061f6d

openstack/sahara-tests,openstack/sahara-tests,esikachev/sahara-tests,openstack/sahara-scenario,esikachev/sahara-tests,esikachev/sahara-tests,openstack/sahara-scenario,openstack/sahara-scenario,openstack/sahara-tests,openstack/sahara-tests