* Documentation: Lay the ground for i18n work.
* Translating both ansible-core and ansible docs requires msgcat
(a program from the gettext package). If msgcat is not present,
only the ansible-core index file's strings will be extracted for translation.
If this is a problem, a short hacking script could be written to take the
place of msgcat (merging the various index pot files into a single pot file).
Co-authored-by: Toshio Kuratomi <a.badger@gmail.com>
