v0.9.0

Changelog:

• Fix a performance issue from changes in v0.7.0 where the decryption chunk size was too large; reducing the chunk size has halved typical decryption times. Reported and fixed by @KnugiHK in #14.
• Make relative_paths_like optional in extract_files(...), although one of relative_paths_like or domains_like must be specified. This allows decrypting everything for a domain without having to pass relative_paths_like="%" too. Also by @KnugiHK in #14.

v0.8.0...v0.9.0