0.3.1

Dependency changes

• Removes dependency on networkx.
• Uses opt_einsum version 2.3.2.

New features

• Conjugate probability distributions BetaBinomial, DirichletMultinomial, GammaPoisson.
• The VonMises distribution now supports sampling (thanks to @ahmadsalim)
• A second order HMM example.
• A mixed-HMM example with seals data.

Minor changes and bug fixes

• Renamed ubersum(..., batch_dims=...) (deprecated) to einsum(..., plates=...).
• HMC - fix bug in initial trace setter and diagnostics, resolve slowness issues during adaptation, expose target_accept_prob and max_tree_depth as arguments to the constructor to allow finer grained control over hyper-parameters.
• Many small fixes to the tutorials.