Update help output shown by "minidlna -h".

Reported-by: (and original version by) Benoît Knecht <benoit.knecht@fsfe.org>
Fix deprecation warning about AM_INIT_AUTOMAKE.
Set the conversion indicator on fake resources for Sony BDP's.  New models support most of these natively, and don't like fake resources.
Update po files
Update French translation
Limit the number of simultanious children

Make sure minidlna cannot fork more than 5 children, to avoid becoming a
fork bomb.

Reported-by: Rinat Ibragimov <ibragimovrinat@mail.ru>