Merge tag 'tor-0.2.5.4-alpha' into debian-merge

Tor 0.2.5.4-alpha release

* tag 'tor-0.2.5.4-alpha': (205 commits)
  Fix hyphen handling in format_changelog
  reflow changelog.
  place the cherries on top and call it done
  promote two stanzas; shuffle around two more
  touchups on upcoming changelog
  resolve a typo: sanboxing->sandboxing.
  two changelog tweaks suggested by Andrea
  Write a release blurb
  Re-order and combine changelog sections
  Integrate another entry to the changelog; twiddle changelog more
  format_changelog.py now formats the first section, in-place.
  Bump version to 0.2.5.4-alpha.
  fix memory leak in dump_exit_policy_to_string tests
  Include the scan-build.sh script I used for 8793
  Changes file for scan-build fixes (#8793)
  Revise changelog verbiage; try to tighten it up.
  ChangeLog: spell-check, prefer "relay" to "node" or "server"
  Try to sort the changelog a little more
  Fwd-port: Add a missing changelog entry back from 0.2.4.11-alpha
  Reformat the changelog for 0.2.5.4-alpha.  No textual changes.
  ...