Merge pull request #3974 from RosettaCommons/rfalford12/protonation-task-op
Task Operation for including protonation variants during packing
This PR adds a new task operation, called pHVariantTaskOperation, which allows sampling of protonated/deprotonated side chain variants during repacking. This is currently set up to enable variants for ASP, GLU, HIS, TYR, and LYS and restore the intended functionality of the -pH_mode flag developed by Krishna here. I've also added a unit test.