Add translation of manual pages, and update the translation of strings.
Bug-Debian: https://bugs.debian.org/1080487
[alx: fix typo: po => ro]
Reviewed-by: Alejandro Colomar <alx@kernel.org>
for autogen.sh)
* configure.in, man/po/Makefile.in.in, man/po/Makefile.in:
Makefile.in.in replaced by Makefile.in to avoid config.status
issues when there are multiple po directories.
* man/po/LINGUAS: Adapted to above change.
* man/po/POTFILES.in, man/po/XMLFILES: POTFILES.in replaced by
XMLFILES.
* man/Makefile.am: generate_mans.deps shall be included by make,
not automake.