Merge branch 'cleanup_algorithms' into 'django3_migration'

beat/web/algorithms/__init__.py

beat/web/algorithms/admin.py

beat/web/algorithms/api.py

beat/web/algorithms/apps.py

beat/web/algorithms/migrations/0001_initial.py

beat/web/algorithms/migrations/0002_cxx_backend.py

beat/web/algorithms/migrations/0003_auto_20161123_1218.py

beat/web/algorithms/migrations/0004_algorithm_type.py

beat/web/algorithms/models.py

beat/web/algorithms/serializers.py

beat/web/algorithms/signals.py

beat/web/algorithms/templates/algorithms/list.html

beat/web/algorithms/templates/algorithms/panels/actions.html

beat/web/algorithms/templates/algorithms/panels/sharing.html

beat/web/algorithms/templates/algorithms/panels/table.html

beat/web/algorithms/templatetags/algorithm_tags.py

beat/web/algorithms/tests/core.py

beat/web/algorithms/tests/tests.py

beat/web/algorithms/tests/tests_api.py

beat/web/algorithms/tests/tests_team.py