Stuart Berg authored Jan 30, 2020 and Tiago Peixoto committed Mar 02, 2020

hierarchy_minimize(): Fix NameError when the caller supplies a hierarchy that is missing the top level

This fixes issue #495.

This modifies the MCMC code to allow simultaneous update of
all hierarchy levels, improving equilibration speed.

This also re-organizes entropy() w.r.t. entropy_args.

This essentially replaces "neighbours" by "neighbors" throughout.

Aliases using the British spelling (e.g. Vertex.out_neighbours()) are
preserved for compatibility.

This includes support for sampling from posteriors of layered models
that are also overlapping and/or with edge covariates.

This fixes issue #325

This solves issue #375 (finally).