Translate 'Ruby 2.1.0 preview2' (fr)
Copyediting for 2013-11-22 news about ruby-2.1.0-preview2 (fr)

Signed-off-by: Jean-Denis Vauguet <jd@vauguet.fr>
Merge pull request #379 from ruby/fr-2.1.0-preview2

Translate 'Ruby 2.1.0 preview2' (fr)