0.3.1 with new cost features, different code layout, changes in potentials handling. Some solvers in function form deprecated.

What's Changed

• Fix jax.device_put for potentials by @michalk8 in #183
• Introduce primal_cost and dual_cost for Sinkhorn outputs (only primal for LR) for arbitrary geometries. by @marcocuturi in #184
• Feature/src layout by @michalk8 in #188
• Handle better inf with p parameter in SqPNorm by @marcocuturi in #189
• Feature/graph normalized laplacian by @michalk8 in #191
• Update installation instruction by @michalk8 in #195
• Feature/center potentials by @michalk8 in #194
• Remove jit from solvers by @michalk8 in #192
• Accelerating unbalanced OT by @michalk8 in #197
• Feature/depracate functional api by @michalk8 in #204
• Fixes numerical errors in Bures barycenter, and sqrtm, due to low default precision. by @marcocuturi in #205
• Update docstrings for deprecated functions by @michalk8 in #207

Full Changelog: 0.3.0...0.3.1