Translate news about CVE-2013-4073 (fr)
Translate news about ruby 1.8.7-p374 (fr)
Translate news about ruby 1.9.3-p448 (fr)
Translate news about ruby 2.0.0-p247 (fr)
Translate news about retiring ruby 1.8.7 (fr)
Some translations kinks fixed for fr/ June's posts.

Signed-off-by: Jean-Denis Vauguet <jd@vauguet.fr>