Added missing filechunkio==1.5 requirement
Use setuptools instead of distutils. Install bin/archive.py console script. Added missing filechunkio==1.5 requirement.
Ignore setuptools build dirs.
Move execution to main() function instead of `if __name__ == '__main__':` block.
Renamed bin/archive.py to bin/internetarchive_cli.py, reflect these changes in setup.py