reference-shortener 0.2.0

Three more reference cleanups in the shortening pipeline:

• location is cleared first — few citation styles print it, so it is the cheapest information to lose.
• URLs are cleaned up alongside DOI normalization (redirect wrappers unwrapped, escapes decoded) — a cleanup any well-formed paper wants anyway.
• month is removed right after author shortening, as the next-cheapest drop.

Full pipeline order: clear location → normalize DOIs → clean up URLs → minify authors → remove month → abbreviate journals → shorten DOIs (last resort, needs the network).

See the changelog.

Native binaries for Linux, macOS, and Windows are attached below.