added pytest.ini.
renamed daemon.py -> daemon/__init__.py.
added tox.ini
added requirements.txt and test-requirements.txt.
added MANIFEST.in.
include *.md and not *.markdown.
renamed README.markdown to README.md.
cleaned up package docstring.
moved content to README file.
changed order of imports.
changed some syntax.
moved changes from module to this file.
added LICENSE.txt
added .gitignore.
added version.py
added setup.py.
changed name to python-daemon2 to avoid confusion with other python-daemon package.