v1.0.0 — Full Python 3 modernization

All user-facing scripts now require Python 3 and expose --help via argparse. Highlights:

• extract_lowscore_decoys*.py: argparse, Python 3 fixes, alias hints in --help
• cluster scripts (r2c, rfc, c2c): alias hints, cluster_info hint on no-args
• rosetta_submit.py, rna_denovo_setup.py: argparse + full 2to3
• Library modules (amino_acids, read_pdb, rosetta_exe, make_tag): main for CLI self-documentation
• easy_cat.py: argparse + Python 3

Drops Python 2 support.

v0.9.0 — README and first argparse batch

Updated README with per-tool descriptions. First wave of argparse modernization covering structure/ wrappers (dssr, lddt, split_models), pdb_util tools (pdbslice, pdbsubset, make_rna_rosetta_ready, plot_contour), and silent_util tools (cat_outfiles, fields, plot_score_vs_rms).

v0.1.0 — Subdirectory reorganization

Initial structured release. Scripts reorganized into subdirectories (structure/, cluster/, seq/, rna_tools/) with simplified PATH setup.