Fixed -s

[0.9.0] Python 3 compat, --quiet obeyed for bitrot.db checksum checks

bitrot 0.8.0, fsencoding and self-integrity check

[0.7.0] Multiple bug fixes and refactors

PEP 8

0.5.1: minor bugfix in test mode reporting

0.5.0: test mode introduced

0.4.0: rename support, progress as percentage, skipping symlinks

0.3.0: `--sum` command-line argument

release 0.2.1