Add a built-in mcmc sampler

See merge request !905

Fixes issue that causes ConditionalDeltaFunction posterior samples not to be saved correctly

See merge request !973

Solution to Incorrect Injected SNR values in log files

See merge request !980

Make Python 3.6+ a specific requirement

See merge request !979

Fix to the calibration and time marginalized likelihood

See merge request !978

Resolve "Distance marginalization error"

Closes #571

See merge request !960

Resolve "check_draw doesn't catch nan log_likelihood values."

Closes #559

See merge request !965

Resolve "docs configuration overwrites source suffixes"

Closes #574

See merge request !963

Resolve "Lack of documentation on class side-effects"

Closes #572

See merge request !964

Allow ptemcee initialization with array

See merge request lscsoft/bilby!955

Resolve "Get rid off `Prior.test_valid_for_rescaling`?"

Closes #511

See merge request !956

Add run statistics to the dynesty meta data

See merge request !969

Replace deprecated numpy aliases of builtins

See merge request !970

bilby/gw/likelihood.py: Fix a bug in the algorithm to determine time resolution of ROQ

See merge request lscsoft/bilby!967

Resolve "Time to refactor utils?"

Closes #509

See merge request lscsoft/bilby!873

Resolve "Default 'walks' for dynesty"

Closes #557

See merge request lscsoft/bilby!961

Fix _base_roq_waveform

See merge request lscsoft/bilby!959

Add dynesty unit plot

See merge request lscsoft/bilby!954

Add an extras requires to enable downstream packages to depend on bilby[gw]

See merge request lscsoft/bilby!939