Log Message:
po4a: updated to 0.69

        ___   __   ___
__   __/ _ \ / /_ / _ \
\ \ / / | | | '_ \ (_) |          Happy New Year release.
 \ V /| |_| | (_) \__, |
  \_/  \___(_)___/  /_/           (Released on 2023/01/01)

Markdown:
 * Parts of a fenced divs are now translated separately

YAML and Yaml Front Matter:
 * Use the implementation of YFM to parse YAML files too.
   - This reduces the code dupplication, and brings the nice features over:
     Numbers and arrays are not quoted anymore in Yaml files, as it should be.
   - This adds the yfm_paths option to Markdown and Asciidoc YFM,
     fixing GitHub's 392 along the way.
   - Please note that '-o keys' is now case-sensitive in Yaml documents.
 * Do not translate nor quote booleans, so that they are not treated as string.
   Thanks Gissmo for GitHub's PR 393, even if I had to rework it quite a bit.

XML:
 * Correctly handle placeholders of empty elements
 * Translate attributes within attribute-folded inline and placeholder
   alt attribute of <img> can be properly handled with:
   -o 'attributes=<image>alt' -o 'inline=<image>' -o foldattributes
 * Thanks k-yaegashi for the pull request fixing both issues

Project organization:
 * Do not leak the generation date in our manpages
   Thanks Arnout Engelen for the pull request.

Translations:
 * New translation: Georgian, thanks Temuri Doghonadze.
 * Updated: Dutch, thanks Frans Spiesschaert.
 * Updated: French, thanks Jérémie Tarot & Brandelune.
 * Updated: Italian, thanks Marco Ciampa.
 * Updated: Japanese, thanks gemmaro.
 * Updated: Portuguese, thanks Hugo Carvalho.
 * Updated: Portuguese (Brazil), thanks Rafael Fontenelle.
 * Updated: Ukrainian, thanks Yuri Chornoivan (українська).