Merge remote-tracking branch 'origin/master' into Simplify_wg_redundant_code

.gitlab-ci.yml

examples/injection_examples/calibration_example.py

examples/injection_examples/eccentric_GW150914_inspiral.py

examples/injection_examples/marginalized_likelihood.py

examples/open_data_examples/GW150914.py

test/calibration_tests.py

tupak/core/prior.py

tupak/gw/__init__.py

tupak/gw/calibration.py

tupak/gw/detector.py

tupak/gw/prior.py

tupak/gw/prior_files/GW150914.prior

tupak/gw/source.py

tupak/gw/utils.py