Merge pull request #2541 from RosettaCommons/roccomoretti/ligand_rmsd_native_ensemble_best
Add ability to get an 'ensemble best' from the ligand docking RMSD.
If you enable the 'native_ensemble_best' option in the InterfaceScoreCalculator, you can provide a native with multiple residues in the given chain. The native comparisons (e.g. ligand_rmsd) will then be reported for the best (i.e. lowest rmsd) structure.