Update ChangeLog ahead of v8.17.1 (#4603)

oop ahem revert the -rc1 in meson version

oop ahem revert the -rc1 in meson version

as uploaded

as uploaded

convi: ensure double sum precision when multiplying floats (#4418)

Merge branch '8.16'

Avoid possible overflow when multiplication result is cast up/down (#…

…4412)

Fix `vips_isprefix()` argument order (#4225)

The arguments were reversed, likely due to confusion with
`g_str_has_prefix()`. Ensures all metadata is removed when saving
with `keep=none`.

See: #4224.

Merge branch 'master' into 8.16