Modify nosetests result file name

Currently adding setup.py and other thing around packaging - using nosetests
is one. We want to ignore the file produced when running python setup.py nosetests
Add a reStructuredText README for pypi

Because PyPI do not handle markdown we need to have the README in rst format...
To update the rst README from the one in markdown use the following command
pandoc --from=markdown --to=rst --output=README.rst README.md
Add setup files

The setup files allows to create a distribution package, upload it to PyPI and
run tests.