choderalab/openmmtools: 0.26.0 System Minimization Improvements

0.26.0 System Minimization Improvements This release removes the barostat force during system minimization and fixes various warnings. There are no API breaks in this release. Fix AST deprecation warning & support pyyaml when built without C extensions PR #800 Remove the barostat force from the system during minimization PR #798. Minimization is now explicitly performed without any barostats; before these changes it only worked for the MonteCarloBarostat. More details :point_down: What's Changed Remove the barostat force from the system during minimization by @hannahbaumann in https://github.com/choderalab/openmmtools/pull/798 fix deprecation is ast module by @mikemhenry in https://github.com/choderalab/openmmtools/pull/800 release 0.26.0 by @mikemhenry in https://github.com/choderalab/openmmtools/pull/802 Full Changelog: https://github.com/choderalab/openmmtools/compare/0.25.3...0.26.0