Settings : add french translation

Patch set 1 : initial commit
Patch set 2 : rebase and correction
Patch set 3 : correction
Patch set 4 : remove not use translation
Patch set 5 : missing translation
Patch set 6 : rebase, add translation and correction (thk Eric)
Patch set 7 : correction
Patch set 8 : correction
Patch set 9 : correction (thk Eric & Léo)
Patch set 10 : correction
Patch set 11 : rebase, correction and add new translation
Patch set 12 : rebase, add last translation http://review.cyanogenmod.org/#/c/31763
Patch set 13 : rebase, correction and add last translation http://review.cyanogenmod.org/#/c/33605/
Patch set 14 : correction (thk Eric)
Patch set 15 : correction (Last ?)
Patch set 16 : correction

Change-Id: I71eb7a90d3845ddc7937f991121b549d62e01d50