Don't include *.md files in wheel.

Those are installed in /usr/lib/pillarsdk or /path/to/venv/lib/pillarsdk,
which is too far away from the Python package itself.

setup.py

@@ -13,7 +13,6 @@ setup(
     author_email='francesco@blender.org',
     packages=['pillarsdk'],
     scripts=[],
-    data_files=[('pillarsdk', glob.glob('*.md'))],
     url='https://github.com/armadillica/Pillar-Python-SDK',
     license='BSD License',
     description='The Pillar REST SDK provides Python APIs to communicate to the Pillar webservices.',