clean up the 0.4.9.1-alpha changelog/releasenotes (!849) · Merge requests · The Tor Project / Core / Tor

Remove 0.4.9.1-alpha entries from releasenotes, because that file is for stable releases

Forward-port the missing 0.4.8.13 entries

Remove the redundant changelog entries that had already been released

clean up the 0.4.9.1-alpha changelog/releasenotes