init french translation
French translation + added v1.0.0 as main
Add french translation for spec 2.0.0

Layout rendering not tested on a browser.
Add french translation for spec 2.0.0

(changed file encoding to UTF-8 with BOM)
Merge branch 'french-translation' into french-merge
Merge remote-tracking branch 'dudeP/gh-pages' into french-merge

Conflicts:
	_layouts/french.html
	lang/fr/index.md
Merge for accordance between 2.0.0 and 1.0.0
review from @DudePascalou
review from @juherr
Merge pull request #70 from almorelle/french-merge

French merge