Merge branch '17_bsd_licensing' into 'master'

AUTHORS.rst

LICENSE

LICENSE.AGPL

MANIFEST.in

README.rst

beat/__init__.py

beat/backend/__init__.py

beat/backend/python/__init__.py

beat/backend/python/algorithm.py

beat/backend/python/baseformat.py

beat/backend/python/data.py

beat/backend/python/data_loaders.py

beat/backend/python/database.py

beat/backend/python/dataformat.py

beat/backend/python/exceptions.py

beat/backend/python/execution/__init__.py

beat/backend/python/execution/algorithm.py

beat/backend/python/execution/database.py

beat/backend/python/execution/helpers.py

beat/backend/python/execution/loop.py