deb packaging: update changelog.

automake conf: fix make distcheck failing due to file name length lim…

…itation.

Fixes issue adflib#88.

Update README (files section, credits, minor corrections).

Merge pull request adflib#57 from t-w/actions

Updated Github Actions, info files, the date of the version 0.8.0

gh actions / cmake / windows: correct jobs (add shell).

gh actions: correct tags trigger for autotools.

gh actions / cmake: correct preparing windows artifacts.

Use tags in artifact names.

Checking in the latest source version found on the website