Merge pull request #9 from cdlm/french-6

[fr#6] translate case 6 (Empty) to French
Merge pull request #7 from cdlm/french-extras

[FR] Translate extras
Migrate to new directory structure
Migrate French translations to new directory structure
Typos, punctuation, french errors

Also replace curly apostrophes with more traditional single quotes
[fr] Explicitly translated links