updating known issues fr translatio
Merge branch 'master' of git://git.tails.boum.org/tails into translation

Conflicts:
	wiki/src/support/known_issues.fr.po
Ignore plural form errors reported by i18nspector

Transifex determines the plural form based on a different document
that the canonical one for Gettext. Even if they can slightly differ, let's
trust them not to be totally wrong.

http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html
Merge remote-tracking branch 'mercedes/translation'