PyPI classifiers stop deployment

The license tag is wrong at setup.py. Please use the precise value as indicated here:

https://gitlab.idiap.ch/bob/bob.admin/tree/master/templates

Which should be:

License :: OSI Approved :: GNU General Public License v3 (GPLv3)

And not as is currently:

License :: OSI Approved :: GPL General Public Licence (GPLv3)

@dgeissbuhler, please fix this and re-release v1.0.1