This patch is adding the references for the two newly added files
save_jpeg.c and save_png.c for translation (even if those new
files are not adding any new strings to be translated).
The translation check would complain because it does not find any '.po'
files, so I am providing one translation.
Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
The library did not propose the mechanisms to be translated, this patch is
creating the structure in autoconf/automake and the translation directory
so its messages can be also translated.
Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
