Output ligand stem before parsing
Added if exists(output_ligand_path) branch
Replaced setprecision(3) by setprecision(2) in REMARK output
Added REMARK numbers 921 to 925
Used REMARK 921 to identify affinity line
Substituted results.reserve(max_conformations);
Moved out affinities.reserve(max_conformations);
Incremented the version number from 2.1.2 to 2.1.3
Added change log for v2.1.3