WIP: equilibrium: Snapshot with passing tests for robustness improvements to the solver. Still need to add test for issue 43 (appears fixed in notebook)
WIP: equilibrium: Snapshot with passing tests for robustness improvements to the solver. Still need to add test for issue 43 (appears fixed in notebook)

tkphd/pycalphad,tkphd/pycalphad,tkphd/pycalphad