complete changelog to reasonable accuracy for quick release

Merge pull request #1039 from ap--/fix-timezone-error

Fix timezone error

prepare v8.0.4 release

Merge pull request #929 from RonnyPfannschmidt/fix-918-drop-importlib…

…-metadata-to-support-messed-no-binary

fix #918: remove the need for importlib_metadata in general

Merge pull request #924 from RonnyPfannschmidt/fix-919-version-file-l…

…egacy

Fix 919 version file legacy

Merge pull request #909 from RonnyPfannschmidt/fix-906-parse-paramete…

…rs-from-setup

fix #906: ensure tag regex from setup.py is converted to regex

Merge pull request #904 from RonnyPfannschmidt/compat

prepare safer backward compatibility

Merge pull request #746 from RonnyPfannschmidt/release-prep

prepare release

Merge pull request #739 from RonnyPfannschmidt/fix-738-protect-relati…

…ve-to

fix #738: protect relative_to of Configuration.from_file