Allow installation of the project without a setup.py
Allow installation of the project without a setup.py

With PEP 517, projects may no longer even have one in the future.

davidfischer/readthedocs.org,davidfischer/readthedocs.org,rtfd/readthedocs.org,pombredanne/readthedocs.org,rtfd/readthedocs.org,rtfd/readthedocs.org,safwanrahman/readthedocs.org,safwanrahman/readthedocs.org,davidfischer/readthedocs.org,safwanrahman/readthedocs.org,rtfd/readthedocs.org,safwanrahman/readthedocs.org,davidfischer/readthedocs.org,pombredanne/readthedocs.org,pombredanne/readthedocs.org