Gallery2: FR translation

-PS1: add new translation
-PS2->5: correction
-PS6: rebase and remove obsolete string

Change-Id: I8058578f2f11dece47d889e0d755ee583e91381c
Merge branch 'cm-10.2' of github.com:CyanogenMod/android_packages_apps_Gallery2 into cm-10.2